Home / 992,690.88-1,369,916.64-539,981.76

Finding the Fourth Proportional to 992,690.88, 1,369,916.64 and 539,981.76

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Solution

The fourth proportional to 992,690.88, 1,369,916.64 and 539,981.76 is: 745,176.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,690.88 : 1,369,916.64 = 539,981.76 : x
  2. Step 2: Convert to fraction form
    992,690.88/1,369,916.64 = 539,981.76/x
  3. Step 3: Cross multiply
    992,690.88x = 1,369,916.64 × 539,981.76
  4. Step 4: Simplify right side
    992,690.88x = 739,729,998,320.49
  5. Step 5: Solve for x
    x = 739,729,998,320.49/992,690.88
  6. Step 6: Final answer
    x = 745,176.58

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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.