Home / 972,144.36-1,341,344.43-564,009.78

Finding the Fourth Proportional to 972,144.36, 1,341,344.43 and 564,009.78

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Solution

The fourth proportional to 972,144.36, 1,341,344.43 and 564,009.78 is: 778,208.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    972,144.36 : 1,341,344.43 = 564,009.78 : x
  2. Step 2: Convert to fraction form
    972,144.36/1,341,344.43 = 564,009.78/x
  3. Step 3: Cross multiply
    972,144.36x = 1,341,344.43 × 564,009.78
  4. Step 4: Simplify right side
    972,144.36x = 756,531,376,868.53
  5. Step 5: Solve for x
    x = 756,531,376,868.53/972,144.36
  6. Step 6: Final answer
    x = 778,208.88

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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.