Home / 1,377,112.89-2,065,667.75-478,554.71

Finding the Fourth Proportional to 1,377,112.89, 2,065,667.75 and 478,554.71

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Solution

The fourth proportional to 1,377,112.89, 2,065,667.75 and 478,554.71 is: 717,831.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,377,112.89 : 2,065,667.75 = 478,554.71 : x
  2. Step 2: Convert to fraction form
    1,377,112.89/2,065,667.75 = 478,554.71/x
  3. Step 3: Cross multiply
    1,377,112.89x = 2,065,667.75 × 478,554.71
  4. Step 4: Simplify right side
    1,377,112.89x = 988,535,024,594.83
  5. Step 5: Solve for x
    x = 988,535,024,594.83/1,377,112.89
  6. Step 6: Final answer
    x = 717,831.51

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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.