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Finding the Fourth Proportional to 762,689.60, 1,052,250.95 and 435,768.03

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Solution

The fourth proportional to 762,689.60, 1,052,250.95 and 435,768.03 is: 601,210.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,689.60 : 1,052,250.95 = 435,768.03 : x
  2. Step 2: Convert to fraction form
    762,689.60/1,052,250.95 = 435,768.03/x
  3. Step 3: Cross multiply
    762,689.60x = 1,052,250.95 × 435,768.03
  4. Step 4: Simplify right side
    762,689.60x = 458,537,321,368.29
  5. Step 5: Solve for x
    x = 458,537,321,368.29/762,689.60
  6. Step 6: Final answer
    x = 601,210.93

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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.