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Finding the Fourth Proportional to 580,031.80, 870,047.70 and 510,047.80

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Solution

The fourth proportional to 580,031.80, 870,047.70 and 510,047.80 is: 765,071.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,031.80 : 870,047.70 = 510,047.80 : x
  2. Step 2: Convert to fraction form
    580,031.80/870,047.70 = 510,047.80/x
  3. Step 3: Cross multiply
    580,031.80x = 870,047.70 × 510,047.80
  4. Step 4: Simplify right side
    580,031.80x = 443,765,915,280.06
  5. Step 5: Solve for x
    x = 443,765,915,280.06/580,031.80
  6. Step 6: Final answer
    x = 765,071.70

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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.