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Finding the Fourth Proportional to 612,706.58, 918,938.48 and 582,326.18

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Solution

The fourth proportional to 612,706.58, 918,938.48 and 582,326.18 is: 873,373.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,706.58 : 918,938.48 = 582,326.18 : x
  2. Step 2: Convert to fraction form
    612,706.58/918,938.48 = 582,326.18/x
  3. Step 3: Cross multiply
    612,706.58x = 918,938.48 × 582,326.18
  4. Step 4: Simplify right side
    612,706.58x = 535,121,931,574.53
  5. Step 5: Solve for x
    x = 535,121,931,574.53/612,706.58
  6. Step 6: Final answer
    x = 873,373.90

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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.