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Finding the Fourth Proportional to 507,955.60, 761,909.10 and 170,963.20

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Solution

The fourth proportional to 507,955.60, 761,909.10 and 170,963.20 is: 256,436.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,955.60 : 761,909.10 = 170,963.20 : x
  2. Step 2: Convert to fraction form
    507,955.60/761,909.10 = 170,963.20/x
  3. Step 3: Cross multiply
    507,955.60x = 761,909.10 × 170,963.20
  4. Step 4: Simplify right side
    507,955.60x = 130,258,417,845.12
  5. Step 5: Solve for x
    x = 130,258,417,845.12/507,955.60
  6. Step 6: Final answer
    x = 256,436.62

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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.