Home / 665,055.10-997,582.65-487,908.10

Finding the Fourth Proportional to 665,055.10, 997,582.65 and 487,908.10

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Solution

The fourth proportional to 665,055.10, 997,582.65 and 487,908.10 is: 731,862.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,055.10 : 997,582.65 = 487,908.10 : x
  2. Step 2: Convert to fraction form
    665,055.10/997,582.65 = 487,908.10/x
  3. Step 3: Cross multiply
    665,055.10x = 997,582.65 × 487,908.10
  4. Step 4: Simplify right side
    665,055.10x = 486,728,655,354.47
  5. Step 5: Solve for x
    x = 486,728,655,354.47/665,055.10
  6. Step 6: Final answer
    x = 731,862.15

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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.