Home / 1,390,498.20-2,084,580.90-725,650.20

Finding the Fourth Proportional to 1,390,498.20, 2,084,580.90 and 725,650.20

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Solution

The fourth proportional to 1,390,498.20, 2,084,580.90 and 725,650.20 is: 1,087,866.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,390,498.20 : 2,084,580.90 = 725,650.20 : x
  2. Step 2: Convert to fraction form
    1,390,498.20/2,084,580.90 = 725,650.20/x
  3. Step 3: Cross multiply
    1,390,498.20x = 2,084,580.90 × 725,650.20
  4. Step 4: Simplify right side
    1,390,498.20x = 1,512,676,547,001.18
  5. Step 5: Solve for x
    x = 1,512,676,547,001.18/1,390,498.20
  6. Step 6: Final answer
    x = 1,087,866.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.