Home / 1,038,759.92-1,423,094.45-999,915.20

Finding the Fourth Proportional to 1,038,759.92, 1,423,094.45 and 999,915.20

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Solution

The fourth proportional to 1,038,759.92, 1,423,094.45 and 999,915.20 is: 1,369,877.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,759.92 : 1,423,094.45 = 999,915.20 : x
  2. Step 2: Convert to fraction form
    1,038,759.92/1,423,094.45 = 999,915.20/x
  3. Step 3: Cross multiply
    1,038,759.92x = 1,423,094.45 × 999,915.20
  4. Step 4: Simplify right side
    1,038,759.92x = 1,422,973,777,648.16
  5. Step 5: Solve for x
    x = 1,422,973,777,648.16/1,038,759.92
  6. Step 6: Final answer
    x = 1,369,877.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.