Home / 1,038,395.52-1,557,680.88-328,407.84

Finding the Fourth Proportional to 1,038,395.52, 1,557,680.88 and 328,407.84

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Solution

The fourth proportional to 1,038,395.52, 1,557,680.88 and 328,407.84 is: 492,639.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,395.52 : 1,557,680.88 = 328,407.84 : x
  2. Step 2: Convert to fraction form
    1,038,395.52/1,557,680.88 = 328,407.84/x
  3. Step 3: Cross multiply
    1,038,395.52x = 1,557,680.88 × 328,407.84
  4. Step 4: Simplify right side
    1,038,395.52x = 511,554,613,210.10
  5. Step 5: Solve for x
    x = 511,554,613,210.10/1,038,395.52
  6. Step 6: Final answer
    x = 492,639.46

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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.