Home / 999,031.95-1,379,294.49-693,001.28

Finding the Fourth Proportional to 999,031.95, 1,379,294.49 and 693,001.28

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Solution

The fourth proportional to 999,031.95, 1,379,294.49 and 693,001.28 is: 956,779.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,031.95 : 1,379,294.49 = 693,001.28 : x
  2. Step 2: Convert to fraction form
    999,031.95/1,379,294.49 = 693,001.28/x
  3. Step 3: Cross multiply
    999,031.95x = 1,379,294.49 × 693,001.28
  4. Step 4: Simplify right side
    999,031.95x = 955,852,853,113.94
  5. Step 5: Solve for x
    x = 955,852,853,113.94/999,031.95
  6. Step 6: Final answer
    x = 956,779.06

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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.