Home / 1,217,000.90-1,825,328.55-418,319.30

Finding the Fourth Proportional to 1,217,000.90, 1,825,328.55 and 418,319.30

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Solution

The fourth proportional to 1,217,000.90, 1,825,328.55 and 418,319.30 is: 627,419.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217,000.90 : 1,825,328.55 = 418,319.30 : x
  2. Step 2: Convert to fraction form
    1,217,000.90/1,825,328.55 = 418,319.30/x
  3. Step 3: Cross multiply
    1,217,000.90x = 1,825,328.55 × 418,319.30
  4. Step 4: Simplify right side
    1,217,000.90x = 763,570,161,306.02
  5. Step 5: Solve for x
    x = 763,570,161,306.02/1,217,000.90
  6. Step 6: Final answer
    x = 627,419.55

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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.