Home / 909,879.08-1,255,621.20-501,998.11

Finding the Fourth Proportional to 909,879.08, 1,255,621.20 and 501,998.11

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Solution

The fourth proportional to 909,879.08, 1,255,621.20 and 501,998.11 is: 692,750.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,879.08 : 1,255,621.20 = 501,998.11 : x
  2. Step 2: Convert to fraction form
    909,879.08/1,255,621.20 = 501,998.11/x
  3. Step 3: Cross multiply
    909,879.08x = 1,255,621.20 × 501,998.11
  4. Step 4: Simplify right side
    909,879.08x = 630,319,464,254.39
  5. Step 5: Solve for x
    x = 630,319,464,254.39/909,879.08
  6. Step 6: Final answer
    x = 692,750.81

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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.