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Finding the Fourth Proportional to 637,785.60, 954,967.68 and 356,501.76

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Solution

The fourth proportional to 637,785.60, 954,967.68 and 356,501.76 is: 533,796.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,785.60 : 954,967.68 = 356,501.76 : x
  2. Step 2: Convert to fraction form
    637,785.60/954,967.68 = 356,501.76/x
  3. Step 3: Cross multiply
    637,785.60x = 954,967.68 × 356,501.76
  4. Step 4: Simplify right side
    637,785.60x = 340,447,658,663.12
  5. Step 5: Solve for x
    x = 340,447,658,663.12/637,785.60
  6. Step 6: Final answer
    x = 533,796.40

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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.