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Finding the Fourth Proportional to 570,658.80, 855,923.40 and 149,977.20

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Solution

The fourth proportional to 570,658.80, 855,923.40 and 149,977.20 is: 224,948.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,658.80 : 855,923.40 = 149,977.20 : x
  2. Step 2: Convert to fraction form
    570,658.80/855,923.40 = 149,977.20/x
  3. Step 3: Cross multiply
    570,658.80x = 855,923.40 × 149,977.20
  4. Step 4: Simplify right side
    570,658.80x = 128,368,994,946.48
  5. Step 5: Solve for x
    x = 128,368,994,946.48/570,658.80
  6. Step 6: Final answer
    x = 224,948.77

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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.