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Finding the Fourth Proportional to 460,478.10, 635,450.18 and 256,528.74

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Solution

The fourth proportional to 460,478.10, 635,450.18 and 256,528.74 is: 354,004.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,478.10 : 635,450.18 = 256,528.74 : x
  2. Step 2: Convert to fraction form
    460,478.10/635,450.18 = 256,528.74/x
  3. Step 3: Cross multiply
    460,478.10x = 635,450.18 × 256,528.74
  4. Step 4: Simplify right side
    460,478.10x = 163,011,234,008.17
  5. Step 5: Solve for x
    x = 163,011,234,008.17/460,478.10
  6. Step 6: Final answer
    x = 354,004.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.