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Finding the Fourth Proportional to 610,958.70, 916,547.40 and 256,008.60

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Solution

The fourth proportional to 610,958.70, 916,547.40 and 256,008.60 is: 384,058.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,958.70 : 916,547.40 = 256,008.60 : x
  2. Step 2: Convert to fraction form
    610,958.70/916,547.40 = 256,008.60/x
  3. Step 3: Cross multiply
    610,958.70x = 916,547.40 × 256,008.60
  4. Step 4: Simplify right side
    610,958.70x = 234,644,016,707.64
  5. Step 5: Solve for x
    x = 234,644,016,707.64/610,958.70
  6. Step 6: Final answer
    x = 384,058.72

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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.