Home / 1,298,638.98-1,792,161.45-725,703.30

Finding the Fourth Proportional to 1,298,638.98, 1,792,161.45 and 725,703.30

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Solution

The fourth proportional to 1,298,638.98, 1,792,161.45 and 725,703.30 is: 1,001,492.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,638.98 : 1,792,161.45 = 725,703.30 : x
  2. Step 2: Convert to fraction form
    1,298,638.98/1,792,161.45 = 725,703.30/x
  3. Step 3: Cross multiply
    1,298,638.98x = 1,792,161.45 × 725,703.30
  4. Step 4: Simplify right side
    1,298,638.98x = 1,300,577,478,397.79
  5. Step 5: Solve for x
    x = 1,300,577,478,397.79/1,298,638.98
  6. Step 6: Final answer
    x = 1,001,492.72

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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.