Home / 865,459.48-1,298,312.07-266,470.42

Finding the Fourth Proportional to 865,459.48, 1,298,312.07 and 266,470.42

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Solution

The fourth proportional to 865,459.48, 1,298,312.07 and 266,470.42 is: 399,743.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,459.48 : 1,298,312.07 = 266,470.42 : x
  2. Step 2: Convert to fraction form
    865,459.48/1,298,312.07 = 266,470.42/x
  3. Step 3: Cross multiply
    865,459.48x = 1,298,312.07 × 266,470.42
  4. Step 4: Simplify right side
    865,459.48x = 345,961,762,583.97
  5. Step 5: Solve for x
    x = 345,961,762,583.97/865,459.48
  6. Step 6: Final answer
    x = 399,743.45

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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.