Home / 999,430.25-1,379,215.55-546,721.25

Finding the Fourth Proportional to 999,430.25, 1,379,215.55 and 546,721.25

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Solution

The fourth proportional to 999,430.25, 1,379,215.55 and 546,721.25 is: 754,476.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,430.25 : 1,379,215.55 = 546,721.25 : x
  2. Step 2: Convert to fraction form
    999,430.25/1,379,215.55 = 546,721.25/x
  3. Step 3: Cross multiply
    999,430.25x = 1,379,215.55 × 546,721.25
  4. Step 4: Simplify right side
    999,430.25x = 754,046,443,986.16
  5. Step 5: Solve for x
    x = 754,046,443,986.16/999,430.25
  6. Step 6: Final answer
    x = 754,476.31

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1.5x scale

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.