Home / 915,730.20-1,374,004.90-416,837.40

Finding the Fourth Proportional to 915,730.20, 1,374,004.90 and 416,837.40

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Solution

The fourth proportional to 915,730.20, 1,374,004.90 and 416,837.40 is: 625,442.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,730.20 : 1,374,004.90 = 416,837.40 : x
  2. Step 2: Convert to fraction form
    915,730.20/1,374,004.90 = 416,837.40/x
  3. Step 3: Cross multiply
    915,730.20x = 1,374,004.90 × 416,837.40
  4. Step 4: Simplify right side
    915,730.20x = 572,736,630,103.26
  5. Step 5: Solve for x
    x = 572,736,630,103.26/915,730.20
  6. Step 6: Final answer
    x = 625,442.55

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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.