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Finding the Fourth Proportional to 402,483.60, 603,746.08 and 102,966.78

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Solution

The fourth proportional to 402,483.60, 603,746.08 and 102,966.78 is: 154,455.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,483.60 : 603,746.08 = 102,966.78 : x
  2. Step 2: Convert to fraction form
    402,483.60/603,746.08 = 102,966.78/x
  3. Step 3: Cross multiply
    402,483.60x = 603,746.08 × 102,966.78
  4. Step 4: Simplify right side
    402,483.60x = 62,165,786,261.66
  5. Step 5: Solve for x
    x = 62,165,786,261.66/402,483.60
  6. Step 6: Final answer
    x = 154,455.45

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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.