Home / 1,407,805.29-2,111,707.90-649,422.38

Finding the Fourth Proportional to 1,407,805.29, 2,111,707.90 and 649,422.38

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Solution

The fourth proportional to 1,407,805.29, 2,111,707.90 and 649,422.38 is: 974,133.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,407,805.29 : 2,111,707.90 = 649,422.38 : x
  2. Step 2: Convert to fraction form
    1,407,805.29/2,111,707.90 = 649,422.38/x
  3. Step 3: Cross multiply
    1,407,805.29x = 2,111,707.90 × 649,422.38
  4. Step 4: Simplify right side
    1,407,805.29x = 1,371,390,358,100.71
  5. Step 5: Solve for x
    x = 1,371,390,358,100.71/1,407,805.29
  6. Step 6: Final answer
    x = 974,133.55

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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.