Home / 319,533.08-442,819.70-315,023

Finding the Fourth Proportional to 319,533.08, 442,819.70 and 315,023

Calculator

Solution

The fourth proportional to 319,533.08, 442,819.70 and 315,023 is: 436,569.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,533.08 : 442,819.70 = 315,023 : x
  2. Step 2: Convert to fraction form
    319,533.08/442,819.70 = 315,023/x
  3. Step 3: Cross multiply
    319,533.08x = 442,819.70 × 315,023
  4. Step 4: Simplify right side
    319,533.08x = 139,498,390,353.10
  5. Step 5: Solve for x
    x = 139,498,390,353.10/319,533.08
  6. Step 6: Final answer
    x = 436,569.48

Related Problems

Find fourth proportional to 159,766.54, 221,409.85 and 157,511.50
Half scale
Find fourth proportional to 639,066.16, 885,639.40 and 630,046
Double scale
Find fourth proportional to 319,534.08, 442,821.09 and 315,024
Similar ratio
Find fourth proportional to 479,299.62, 664,229.55 and 472,534.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.