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Finding the Fourth Proportional to 553,704.76, 829,871.88 and 393,525.40

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Solution

The fourth proportional to 553,704.76, 829,871.88 and 393,525.40 is: 589,801.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,704.76 : 829,871.88 = 393,525.40 : x
  2. Step 2: Convert to fraction form
    553,704.76/829,871.88 = 393,525.40/x
  3. Step 3: Cross multiply
    553,704.76x = 829,871.88 × 393,525.40
  4. Step 4: Simplify right side
    553,704.76x = 326,575,663,525.75
  5. Step 5: Solve for x
    x = 326,575,663,525.75/553,704.76
  6. Step 6: Final answer
    x = 589,801.08

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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.