Home / 557,214-768,955.32-318,750

Finding the Fourth Proportional to 557,214, 768,955.32 and 318,750

Calculator

Solution

The fourth proportional to 557,214, 768,955.32 and 318,750 is: 439,875.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,214 : 768,955.32 = 318,750 : x
  2. Step 2: Convert to fraction form
    557,214/768,955.32 = 318,750/x
  3. Step 3: Cross multiply
    557,214x = 768,955.32 × 318,750
  4. Step 4: Simplify right side
    557,214x = 245,104,508,250.00
  5. Step 5: Solve for x
    x = 245,104,508,250.00/557,214
  6. Step 6: Final answer
    x = 439,875.00

Related Problems

Find fourth proportional to 278,607, 384,477.66 and 159,375
Half scale
Find fourth proportional to 1,114,428, 1,537,910.64 and 637,500
Double scale
Find fourth proportional to 557,215, 768,956.70 and 318,751
Similar ratio
Find fourth proportional to 835,821, 1,153,432.98 and 478,125
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.