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Finding the Fourth Proportional to 612,476.64, 918,116.17 and 275,602.10

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Solution

The fourth proportional to 612,476.64, 918,116.17 and 275,602.10 is: 413,133.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,476.64 : 918,116.17 = 275,602.10 : x
  2. Step 2: Convert to fraction form
    612,476.64/918,116.17 = 275,602.10/x
  3. Step 3: Cross multiply
    612,476.64x = 918,116.17 × 275,602.10
  4. Step 4: Simplify right side
    612,476.64x = 253,034,739,216.37
  5. Step 5: Solve for x
    x = 253,034,739,216.37/612,476.64
  6. Step 6: Final answer
    x = 413,133.70

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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.