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Finding the Fourth Proportional to 579,711.10, 812,148.50 and 579,711.10

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Solution

The fourth proportional to 579,711.10, 812,148.50 and 579,711.10 is: 812,148.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,711.10 : 812,148.50 = 579,711.10 : x
  2. Step 2: Convert to fraction form
    579,711.10/812,148.50 = 579,711.10/x
  3. Step 3: Cross multiply
    579,711.10x = 812,148.50 × 579,711.10
  4. Step 4: Simplify right side
    579,711.10x = 470,811,500,298.35
  5. Step 5: Solve for x
    x = 470,811,500,298.35/579,711.10
  6. Step 6: Final answer
    x = 812,148.50

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.