Home / 1,115,963.42-1,672,962.20-442,518.08

Finding the Fourth Proportional to 1,115,963.42, 1,672,962.20 and 442,518.08

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Solution

The fourth proportional to 1,115,963.42, 1,672,962.20 and 442,518.08 is: 663,387.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,115,963.42 : 1,672,962.20 = 442,518.08 : x
  2. Step 2: Convert to fraction form
    1,115,963.42/1,672,962.20 = 442,518.08/x
  3. Step 3: Cross multiply
    1,115,963.42x = 1,672,962.20 × 442,518.08
  4. Step 4: Simplify right side
    1,115,963.42x = 740,316,018,443.99
  5. Step 5: Solve for x
    x = 740,316,018,443.99/1,115,963.42
  6. Step 6: Final answer
    x = 663,387.35

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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.