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Finding the Fourth Proportional to 612,045.60, 917,809.20 and 296,599.20

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Solution

The fourth proportional to 612,045.60, 917,809.20 and 296,599.20 is: 444,773.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,045.60 : 917,809.20 = 296,599.20 : x
  2. Step 2: Convert to fraction form
    612,045.60/917,809.20 = 296,599.20/x
  3. Step 3: Cross multiply
    612,045.60x = 917,809.20 × 296,599.20
  4. Step 4: Simplify right side
    612,045.60x = 272,221,474,472.64
  5. Step 5: Solve for x
    x = 272,221,474,472.64/612,045.60
  6. Step 6: Final answer
    x = 444,773.19

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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.