Home / 909,300.74-1,255,265.44-527,188.10

Finding the Fourth Proportional to 909,300.74, 1,255,265.44 and 527,188.10

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Solution

The fourth proportional to 909,300.74, 1,255,265.44 and 527,188.10 is: 727,769.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,300.74 : 1,255,265.44 = 527,188.10 : x
  2. Step 2: Convert to fraction form
    909,300.74/1,255,265.44 = 527,188.10/x
  3. Step 3: Cross multiply
    909,300.74x = 1,255,265.44 × 527,188.10
  4. Step 4: Simplify right side
    909,300.74x = 661,761,004,129.46
  5. Step 5: Solve for x
    x = 661,761,004,129.46/909,300.74
  6. Step 6: Final answer
    x = 727,769.12

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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.