Home / 1,031,405.40-1,547,108.10-712,540.80

Finding the Fourth Proportional to 1,031,405.40, 1,547,108.10 and 712,540.80

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Solution

The fourth proportional to 1,031,405.40, 1,547,108.10 and 712,540.80 is: 1,068,811.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,031,405.40 : 1,547,108.10 = 712,540.80 : x
  2. Step 2: Convert to fraction form
    1,031,405.40/1,547,108.10 = 712,540.80/x
  3. Step 3: Cross multiply
    1,031,405.40x = 1,547,108.10 × 712,540.80
  4. Step 4: Simplify right side
    1,031,405.40x = 1,102,377,643,260.48
  5. Step 5: Solve for x
    x = 1,102,377,643,260.48/1,031,405.40
  6. Step 6: Final answer
    x = 1,068,811.20

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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.