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Finding the Fourth Proportional to 585,421.60, 878,132.40 and 230,447.20

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Solution

The fourth proportional to 585,421.60, 878,132.40 and 230,447.20 is: 345,670.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,421.60 : 878,132.40 = 230,447.20 : x
  2. Step 2: Convert to fraction form
    585,421.60/878,132.40 = 230,447.20/x
  3. Step 3: Cross multiply
    585,421.60x = 878,132.40 × 230,447.20
  4. Step 4: Simplify right side
    585,421.60x = 202,363,152,809.28
  5. Step 5: Solve for x
    x = 202,363,152,809.28/585,421.60
  6. Step 6: Final answer
    x = 345,670.80

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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.