Home / 999,430.50-1,379,215.90-546,721.50

Finding the Fourth Proportional to 999,430.50, 1,379,215.90 and 546,721.50

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Solution

The fourth proportional to 999,430.50, 1,379,215.90 and 546,721.50 is: 754,476.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,430.50 : 1,379,215.90 = 546,721.50 : x
  2. Step 2: Convert to fraction form
    999,430.50/1,379,215.90 = 546,721.50/x
  3. Step 3: Cross multiply
    999,430.50x = 1,379,215.90 × 546,721.50
  4. Step 4: Simplify right side
    999,430.50x = 754,046,977,408.97
  5. Step 5: Solve for x
    x = 754,046,977,408.97/999,430.50
  6. Step 6: Final answer
    x = 754,476.66

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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.