Home / 1,038,424.80-1,557,637.20-828,472.80

Finding the Fourth Proportional to 1,038,424.80, 1,557,637.20 and 828,472.80

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Solution

The fourth proportional to 1,038,424.80, 1,557,637.20 and 828,472.80 is: 1,242,709.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,424.80 : 1,557,637.20 = 828,472.80 : x
  2. Step 2: Convert to fraction form
    1,038,424.80/1,557,637.20 = 828,472.80/x
  3. Step 3: Cross multiply
    1,038,424.80x = 1,557,637.20 × 828,472.80
  4. Step 4: Simplify right side
    1,038,424.80x = 1,290,460,052,468.16
  5. Step 5: Solve for x
    x = 1,290,460,052,468.16/1,038,424.80
  6. Step 6: Final answer
    x = 1,242,709.20

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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.