Home / 906,909.20-1,361,411.40-487,005.20

Finding the Fourth Proportional to 906,909.20, 1,361,411.40 and 487,005.20

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Solution

The fourth proportional to 906,909.20, 1,361,411.40 and 487,005.20 is: 731,070.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    906,909.20 : 1,361,411.40 = 487,005.20 : x
  2. Step 2: Convert to fraction form
    906,909.20/1,361,411.40 = 487,005.20/x
  3. Step 3: Cross multiply
    906,909.20x = 1,361,411.40 × 487,005.20
  4. Step 4: Simplify right side
    906,909.20x = 663,014,431,139.28
  5. Step 5: Solve for x
    x = 663,014,431,139.28/906,909.20
  6. Step 6: Final answer
    x = 731,070.36

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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.