Home / 687,711.10-1,029,233.85-603,730.30

Finding the Fourth Proportional to 687,711.10, 1,029,233.85 and 603,730.30

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Solution

The fourth proportional to 687,711.10, 1,029,233.85 and 603,730.30 is: 903,547.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,711.10 : 1,029,233.85 = 603,730.30 : x
  2. Step 2: Convert to fraction form
    687,711.10/1,029,233.85 = 603,730.30/x
  3. Step 3: Cross multiply
    687,711.10x = 1,029,233.85 × 603,730.30
  4. Step 4: Simplify right side
    687,711.10x = 621,379,661,030.66
  5. Step 5: Solve for x
    x = 621,379,661,030.66/687,711.10
  6. Step 6: Final answer
    x = 903,547.52

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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.