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Finding the Fourth Proportional to 968,809.20, 1,452,695.40 and 407,209.20

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Solution

The fourth proportional to 968,809.20, 1,452,695.40 and 407,209.20 is: 610,595.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    968,809.20 : 1,452,695.40 = 407,209.20 : x
  2. Step 2: Convert to fraction form
    968,809.20/1,452,695.40 = 407,209.20/x
  3. Step 3: Cross multiply
    968,809.20x = 1,452,695.40 × 407,209.20
  4. Step 4: Simplify right side
    968,809.20x = 591,550,931,677.68
  5. Step 5: Solve for x
    x = 591,550,931,677.68/968,809.20
  6. Step 6: Final answer
    x = 610,595.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.