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Finding the Fourth Proportional to 1,197,423, 1,652,445.90 and 660,879

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Solution

The fourth proportional to 1,197,423, 1,652,445.90 and 660,879 is: 912,014.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,197,423 : 1,652,445.90 = 660,879 : x
  2. Step 2: Convert to fraction form
    1,197,423/1,652,445.90 = 660,879/x
  3. Step 3: Cross multiply
    1,197,423x = 1,652,445.90 × 660,879
  4. Step 4: Simplify right side
    1,197,423x = 1,092,066,793,946.10
  5. Step 5: Solve for x
    x = 1,092,066,793,946.10/1,197,423
  6. Step 6: Final answer
    x = 912,014.21

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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.