Home / 887,142.18-1,224,254.98-505,168.95

Finding the Fourth Proportional to 887,142.18, 1,224,254.98 and 505,168.95

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Solution

The fourth proportional to 887,142.18, 1,224,254.98 and 505,168.95 is: 697,132.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,142.18 : 1,224,254.98 = 505,168.95 : x
  2. Step 2: Convert to fraction form
    887,142.18/1,224,254.98 = 505,168.95/x
  3. Step 3: Cross multiply
    887,142.18x = 1,224,254.98 × 505,168.95
  4. Step 4: Simplify right side
    887,142.18x = 618,455,602,778.87
  5. Step 5: Solve for x
    x = 618,455,602,778.87/887,142.18
  6. Step 6: Final answer
    x = 697,132.45

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1.5x scale

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.