Home / 987,670.73-1,480,362.47-454,071.89

Finding the Fourth Proportional to 987,670.73, 1,480,362.47 and 454,071.89

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Solution

The fourth proportional to 987,670.73, 1,480,362.47 and 454,071.89 is: 680,582.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,670.73 : 1,480,362.47 = 454,071.89 : x
  2. Step 2: Convert to fraction form
    987,670.73/1,480,362.47 = 454,071.89/x
  3. Step 3: Cross multiply
    987,670.73x = 1,480,362.47 × 454,071.89
  4. Step 4: Simplify right side
    987,670.73x = 672,190,984,637.97
  5. Step 5: Solve for x
    x = 672,190,984,637.97/987,670.73
  6. Step 6: Final answer
    x = 680,582.06

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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.