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Finding the Fourth Proportional to 739,758.61, 1,020,808.74 and 453,239.74

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Solution

The fourth proportional to 739,758.61, 1,020,808.74 and 453,239.74 is: 625,435.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,758.61 : 1,020,808.74 = 453,239.74 : x
  2. Step 2: Convert to fraction form
    739,758.61/1,020,808.74 = 453,239.74/x
  3. Step 3: Cross multiply
    739,758.61x = 1,020,808.74 × 453,239.74
  4. Step 4: Simplify right side
    739,758.61x = 462,671,087,907.33
  5. Step 5: Solve for x
    x = 462,671,087,907.33/739,758.61
  6. Step 6: Final answer
    x = 625,435.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.