Home / 887,228.40-1,224,592.80-505,480.32

Finding the Fourth Proportional to 887,228.40, 1,224,592.80 and 505,480.32

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Solution

The fourth proportional to 887,228.40, 1,224,592.80 and 505,480.32 is: 697,686.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,228.40 : 1,224,592.80 = 505,480.32 : x
  2. Step 2: Convert to fraction form
    887,228.40/1,224,592.80 = 505,480.32/x
  3. Step 3: Cross multiply
    887,228.40x = 1,224,592.80 × 505,480.32
  4. Step 4: Simplify right side
    887,228.40x = 619,007,560,413.70
  5. Step 5: Solve for x
    x = 619,007,560,413.70/887,228.40
  6. Step 6: Final answer
    x = 697,686.82

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Double scale
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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.