Home / 989,432.94-1,365,417.90-559,703.91

Finding the Fourth Proportional to 989,432.94, 1,365,417.90 and 559,703.91

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Solution

The fourth proportional to 989,432.94, 1,365,417.90 and 559,703.91 is: 772,391.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,432.94 : 1,365,417.90 = 559,703.91 : x
  2. Step 2: Convert to fraction form
    989,432.94/1,365,417.90 = 559,703.91/x
  3. Step 3: Cross multiply
    989,432.94x = 1,365,417.90 × 559,703.91
  4. Step 4: Simplify right side
    989,432.94x = 764,229,737,413.99
  5. Step 5: Solve for x
    x = 764,229,737,413.99/989,432.94
  6. Step 6: Final answer
    x = 772,391.65

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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.