Home / 989,325.61-1,484,045.82-279,294.19

Finding the Fourth Proportional to 989,325.61, 1,484,045.82 and 279,294.19

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Solution

The fourth proportional to 989,325.61, 1,484,045.82 and 279,294.19 is: 418,957.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,325.61 : 1,484,045.82 = 279,294.19 : x
  2. Step 2: Convert to fraction form
    989,325.61/1,484,045.82 = 279,294.19/x
  3. Step 3: Cross multiply
    989,325.61x = 1,484,045.82 × 279,294.19
  4. Step 4: Simplify right side
    989,325.61x = 414,485,371,509.67
  5. Step 5: Solve for x
    x = 414,485,371,509.67/989,325.61
  6. Step 6: Final answer
    x = 418,957.49

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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.