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Finding the Fourth Proportional to 693,089, 956,465.70 and 375,137

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Solution

The fourth proportional to 693,089, 956,465.70 and 375,137 is: 517,690.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,089 : 956,465.70 = 375,137 : x
  2. Step 2: Convert to fraction form
    693,089/956,465.70 = 375,137/x
  3. Step 3: Cross multiply
    693,089x = 956,465.70 × 375,137
  4. Step 4: Simplify right side
    693,089x = 358,805,673,300.90
  5. Step 5: Solve for x
    x = 358,805,673,300.90/693,089
  6. Step 6: Final answer
    x = 517,690.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.