Home / 1,038,531.70-1,557,797.55-987,210.10

Finding the Fourth Proportional to 1,038,531.70, 1,557,797.55 and 987,210.10

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Solution

The fourth proportional to 1,038,531.70, 1,557,797.55 and 987,210.10 is: 1,480,815.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,531.70 : 1,557,797.55 = 987,210.10 : x
  2. Step 2: Convert to fraction form
    1,038,531.70/1,557,797.55 = 987,210.10/x
  3. Step 3: Cross multiply
    1,038,531.70x = 1,557,797.55 × 987,210.10
  4. Step 4: Simplify right side
    1,038,531.70x = 1,537,873,475,115.26
  5. Step 5: Solve for x
    x = 1,537,873,475,115.26/1,038,531.70
  6. Step 6: Final answer
    x = 1,480,815.15

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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.