Home / 1,189,432.02-1,641,417.71-645,567.65

Finding the Fourth Proportional to 1,189,432.02, 1,641,417.71 and 645,567.65

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Solution

The fourth proportional to 1,189,432.02, 1,641,417.71 and 645,567.65 is: 890,884.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,432.02 : 1,641,417.71 = 645,567.65 : x
  2. Step 2: Convert to fraction form
    1,189,432.02/1,641,417.71 = 645,567.65/x
  3. Step 3: Cross multiply
    1,189,432.02x = 1,641,417.71 × 645,567.65
  4. Step 4: Simplify right side
    1,189,432.02x = 1,059,646,162,278.15
  5. Step 5: Solve for x
    x = 1,059,646,162,278.15/1,189,432.02
  6. Step 6: Final answer
    x = 890,884.17

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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.