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Finding the Fourth Proportional to 578,052.80, 869,152.80 and 486,814.40

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Solution

The fourth proportional to 578,052.80, 869,152.80 and 486,814.40 is: 731,967.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,052.80 : 869,152.80 = 486,814.40 : x
  2. Step 2: Convert to fraction form
    578,052.80/869,152.80 = 486,814.40/x
  3. Step 3: Cross multiply
    578,052.80x = 869,152.80 × 486,814.40
  4. Step 4: Simplify right side
    578,052.80x = 423,116,098,840.32
  5. Step 5: Solve for x
    x = 423,116,098,840.32/578,052.80
  6. Step 6: Final answer
    x = 731,967.91

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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.