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Finding the Fourth Proportional to 522,888.80, 783,166.80 and 429,576.80

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Solution

The fourth proportional to 522,888.80, 783,166.80 and 429,576.80 is: 643,406.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,888.80 : 783,166.80 = 429,576.80 : x
  2. Step 2: Convert to fraction form
    522,888.80/783,166.80 = 429,576.80/x
  3. Step 3: Cross multiply
    522,888.80x = 783,166.80 × 429,576.80
  4. Step 4: Simplify right side
    522,888.80x = 336,430,287,810.24
  5. Step 5: Solve for x
    x = 336,430,287,810.24/522,888.80
  6. Step 6: Final answer
    x = 643,406.95

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1.5x scale

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.