Home / 1,436,381.76-2,154,569.04-425,582.40

Finding the Fourth Proportional to 1,436,381.76, 2,154,569.04 and 425,582.40

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Solution

The fourth proportional to 1,436,381.76, 2,154,569.04 and 425,582.40 is: 638,372.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,436,381.76 : 2,154,569.04 = 425,582.40 : x
  2. Step 2: Convert to fraction form
    1,436,381.76/2,154,569.04 = 425,582.40/x
  3. Step 3: Cross multiply
    1,436,381.76x = 2,154,569.04 × 425,582.40
  4. Step 4: Simplify right side
    1,436,381.76x = 916,946,663,008.90
  5. Step 5: Solve for x
    x = 916,946,663,008.90/1,436,381.76
  6. Step 6: Final answer
    x = 638,372.53

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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.