Home / 828,165.36-1,142,909.28-505,823.28

Finding the Fourth Proportional to 828,165.36, 1,142,909.28 and 505,823.28

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Solution

The fourth proportional to 828,165.36, 1,142,909.28 and 505,823.28 is: 698,061.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,165.36 : 1,142,909.28 = 505,823.28 : x
  2. Step 2: Convert to fraction form
    828,165.36/1,142,909.28 = 505,823.28/x
  3. Step 3: Cross multiply
    828,165.36x = 1,142,909.28 × 505,823.28
  4. Step 4: Simplify right side
    828,165.36x = 578,110,120,752.04
  5. Step 5: Solve for x
    x = 578,110,120,752.04/828,165.36
  6. Step 6: Final answer
    x = 698,061.22

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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.