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Finding the Fourth Proportional to 418,710.08, 627,273.96 and 247,420.82

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Solution

The fourth proportional to 418,710.08, 627,273.96 and 247,420.82 is: 370,663.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,710.08 : 627,273.96 = 247,420.82 : x
  2. Step 2: Convert to fraction form
    418,710.08/627,273.96 = 247,420.82/x
  3. Step 3: Cross multiply
    418,710.08x = 627,273.96 × 247,420.82
  4. Step 4: Simplify right side
    418,710.08x = 155,200,637,547.85
  5. Step 5: Solve for x
    x = 155,200,637,547.85/418,710.08
  6. Step 6: Final answer
    x = 370,663.72

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1.5x scale

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.