Home / 1,528,348.53-2,109,142.88-840,084.11

Finding the Fourth Proportional to 1,528,348.53, 2,109,142.88 and 840,084.11

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Solution

The fourth proportional to 1,528,348.53, 2,109,142.88 and 840,084.11 is: 1,159,328.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,528,348.53 : 2,109,142.88 = 840,084.11 : x
  2. Step 2: Convert to fraction form
    1,528,348.53/2,109,142.88 = 840,084.11/x
  3. Step 3: Cross multiply
    1,528,348.53x = 2,109,142.88 × 840,084.11
  4. Step 4: Simplify right side
    1,528,348.53x = 1,771,857,420,246.58
  5. Step 5: Solve for x
    x = 1,771,857,420,246.58/1,528,348.53
  6. Step 6: Final answer
    x = 1,159,328.11

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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.