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Finding the Fourth Proportional to 404,658.80, 606,988.20 and 358,002.80

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Solution

The fourth proportional to 404,658.80, 606,988.20 and 358,002.80 is: 537,004.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,658.80 : 606,988.20 = 358,002.80 : x
  2. Step 2: Convert to fraction form
    404,658.80/606,988.20 = 358,002.80/x
  3. Step 3: Cross multiply
    404,658.80x = 606,988.20 × 358,002.80
  4. Step 4: Simplify right side
    404,658.80x = 217,303,475,166.96
  5. Step 5: Solve for x
    x = 217,303,475,166.96/404,658.80
  6. Step 6: Final answer
    x = 537,004.20

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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.