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Finding the Fourth Proportional to 887,598.40, 1,330,490.40 and 437,627.20

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Solution

The fourth proportional to 887,598.40, 1,330,490.40 and 437,627.20 is: 655,993.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,598.40 : 1,330,490.40 = 437,627.20 : x
  2. Step 2: Convert to fraction form
    887,598.40/1,330,490.40 = 437,627.20/x
  3. Step 3: Cross multiply
    887,598.40x = 1,330,490.40 × 437,627.20
  4. Step 4: Simplify right side
    887,598.40x = 582,258,788,378.88
  5. Step 5: Solve for x
    x = 582,258,788,378.88/887,598.40
  6. Step 6: Final answer
    x = 655,993.51

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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.