Home / 1,008,387-1,391,603.76-555,707.16

Finding the Fourth Proportional to 1,008,387, 1,391,603.76 and 555,707.16

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Solution

The fourth proportional to 1,008,387, 1,391,603.76 and 555,707.16 is: 766,892.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,387 : 1,391,603.76 = 555,707.16 : x
  2. Step 2: Convert to fraction form
    1,008,387/1,391,603.76 = 555,707.16/x
  3. Step 3: Cross multiply
    1,008,387x = 1,391,603.76 × 555,707.16
  4. Step 4: Simplify right side
    1,008,387x = 773,324,173,314.92
  5. Step 5: Solve for x
    x = 773,324,173,314.92/1,008,387
  6. Step 6: Final answer
    x = 766,892.25

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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.