Home / 762,064.89-1,052,124.84-490,603.11

Finding the Fourth Proportional to 762,064.89, 1,052,124.84 and 490,603.11

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Solution

The fourth proportional to 762,064.89, 1,052,124.84 and 490,603.11 is: 677,338.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,064.89 : 1,052,124.84 = 490,603.11 : x
  2. Step 2: Convert to fraction form
    762,064.89/1,052,124.84 = 490,603.11/x
  3. Step 3: Cross multiply
    762,064.89x = 1,052,124.84 × 490,603.11
  4. Step 4: Simplify right side
    762,064.89x = 516,175,718,612.25
  5. Step 5: Solve for x
    x = 516,175,718,612.25/762,064.89
  6. Step 6: Final answer
    x = 677,338.28

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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.