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Finding the Fourth Proportional to 460,731.51, 690,200.60 and 260,446.05

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Solution

The fourth proportional to 460,731.51, 690,200.60 and 260,446.05 is: 390,162.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,731.51 : 690,200.60 = 260,446.05 : x
  2. Step 2: Convert to fraction form
    460,731.51/690,200.60 = 260,446.05/x
  3. Step 3: Cross multiply
    460,731.51x = 690,200.60 × 260,446.05
  4. Step 4: Simplify right side
    460,731.51x = 179,760,018,675.40
  5. Step 5: Solve for x
    x = 179,760,018,675.40/460,731.51
  6. Step 6: Final answer
    x = 390,162.20

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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.