Home / 1,155,719.70-1,735,547.85-821,108.70

Finding the Fourth Proportional to 1,155,719.70, 1,735,547.85 and 821,108.70

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Solution

The fourth proportional to 1,155,719.70, 1,735,547.85 and 821,108.70 is: 1,233,061.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,155,719.70 : 1,735,547.85 = 821,108.70 : x
  2. Step 2: Convert to fraction form
    1,155,719.70/1,735,547.85 = 821,108.70/x
  3. Step 3: Cross multiply
    1,155,719.70x = 1,735,547.85 × 821,108.70
  4. Step 4: Simplify right side
    1,155,719.70x = 1,425,073,438,901.30
  5. Step 5: Solve for x
    x = 1,425,073,438,901.30/1,155,719.70
  6. Step 6: Final answer
    x = 1,233,061.48

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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.