Home / 725,397.72-1,000,985.14-403,087.40

Finding the Fourth Proportional to 725,397.72, 1,000,985.14 and 403,087.40

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Solution

The fourth proportional to 725,397.72, 1,000,985.14 and 403,087.40 is: 556,225.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,397.72 : 1,000,985.14 = 403,087.40 : x
  2. Step 2: Convert to fraction form
    725,397.72/1,000,985.14 = 403,087.40/x
  3. Step 3: Cross multiply
    725,397.72x = 1,000,985.14 × 403,087.40
  4. Step 4: Simplify right side
    725,397.72x = 403,484,497,521.24
  5. Step 5: Solve for x
    x = 403,484,497,521.24/725,397.72
  6. Step 6: Final answer
    x = 556,225.21

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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.