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Finding the Fourth Proportional to 539,045.68, 743,870 and 297,323.06

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Solution

The fourth proportional to 539,045.68, 743,870 and 297,323.06 is: 410,298.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,045.68 : 743,870 = 297,323.06 : x
  2. Step 2: Convert to fraction form
    539,045.68/743,870 = 297,323.06/x
  3. Step 3: Cross multiply
    539,045.68x = 743,870 × 297,323.06
  4. Step 4: Simplify right side
    539,045.68x = 221,169,704,642.20
  5. Step 5: Solve for x
    x = 221,169,704,642.20/539,045.68
  6. Step 6: Final answer
    x = 410,298.63

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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.