Home / 1,038,041.80-1,557,062.70-772,321.30

Finding the Fourth Proportional to 1,038,041.80, 1,557,062.70 and 772,321.30

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Solution

The fourth proportional to 1,038,041.80, 1,557,062.70 and 772,321.30 is: 1,158,481.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,041.80 : 1,557,062.70 = 772,321.30 : x
  2. Step 2: Convert to fraction form
    1,038,041.80/1,557,062.70 = 772,321.30/x
  3. Step 3: Cross multiply
    1,038,041.80x = 1,557,062.70 × 772,321.30
  4. Step 4: Simplify right side
    1,038,041.80x = 1,202,552,688,645.51
  5. Step 5: Solve for x
    x = 1,202,552,688,645.51/1,038,041.80
  6. Step 6: Final answer
    x = 1,158,481.95

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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.