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Finding the Fourth Proportional to 652,690.28, 979,316.08 and 353,384.76

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Solution

The fourth proportional to 652,690.28, 979,316.08 and 353,384.76 is: 530,229.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,690.28 : 979,316.08 = 353,384.76 : x
  2. Step 2: Convert to fraction form
    652,690.28/979,316.08 = 353,384.76/x
  3. Step 3: Cross multiply
    652,690.28x = 979,316.08 × 353,384.76
  4. Step 4: Simplify right side
    652,690.28x = 346,075,377,894.94
  5. Step 5: Solve for x
    x = 346,075,377,894.94/652,690.28
  6. Step 6: Final answer
    x = 530,229.10

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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.