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Finding the Fourth Proportional to 585,353.40, 877,592.70 and 319,414.20

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Solution

The fourth proportional to 585,353.40, 877,592.70 and 319,414.20 is: 478,882.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,353.40 : 877,592.70 = 319,414.20 : x
  2. Step 2: Convert to fraction form
    585,353.40/877,592.70 = 319,414.20/x
  3. Step 3: Cross multiply
    585,353.40x = 877,592.70 × 319,414.20
  4. Step 4: Simplify right side
    585,353.40x = 280,315,570,196.34
  5. Step 5: Solve for x
    x = 280,315,570,196.34/585,353.40
  6. Step 6: Final answer
    x = 478,882.62

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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.