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Finding the Fourth Proportional to 887,475, 1,224,801.66 and 525,015.54

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Solution

The fourth proportional to 887,475, 1,224,801.66 and 525,015.54 is: 724,572.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,475 : 1,224,801.66 = 525,015.54 : x
  2. Step 2: Convert to fraction form
    887,475/1,224,801.66 = 525,015.54/x
  3. Step 3: Cross multiply
    887,475x = 1,224,801.66 × 525,015.54
  4. Step 4: Simplify right side
    887,475x = 643,039,904,917.80
  5. Step 5: Solve for x
    x = 643,039,904,917.80/887,475
  6. Step 6: Final answer
    x = 724,572.42

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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.