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Finding the Fourth Proportional to 578,051.70, 868,114.35 and 559,389.30

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Solution

The fourth proportional to 578,051.70, 868,114.35 and 559,389.30 is: 840,087.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,051.70 : 868,114.35 = 559,389.30 : x
  2. Step 2: Convert to fraction form
    578,051.70/868,114.35 = 559,389.30/x
  3. Step 3: Cross multiply
    578,051.70x = 868,114.35 × 559,389.30
  4. Step 4: Simplify right side
    578,051.70x = 485,613,878,566.46
  5. Step 5: Solve for x
    x = 485,613,878,566.46/578,051.70
  6. Step 6: Final answer
    x = 840,087.28

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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.