Home / 915,455.60-1,373,442.60-284,433.20

Finding the Fourth Proportional to 915,455.60, 1,373,442.60 and 284,433.20

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Solution

The fourth proportional to 915,455.60, 1,373,442.60 and 284,433.20 is: 426,730.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,455.60 : 1,373,442.60 = 284,433.20 : x
  2. Step 2: Convert to fraction form
    915,455.60/1,373,442.60 = 284,433.20/x
  3. Step 3: Cross multiply
    915,455.60x = 1,373,442.60 × 284,433.20
  4. Step 4: Simplify right side
    915,455.60x = 390,652,673,734.32
  5. Step 5: Solve for x
    x = 390,652,673,734.32/915,455.60
  6. Step 6: Final answer
    x = 426,730.33

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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.