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Finding the Fourth Proportional to 670,574.80, 925,323.24 and 384,106.96

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Solution

The fourth proportional to 670,574.80, 925,323.24 and 384,106.96 is: 530,027.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,574.80 : 925,323.24 = 384,106.96 : x
  2. Step 2: Convert to fraction form
    670,574.80/925,323.24 = 384,106.96/x
  3. Step 3: Cross multiply
    670,574.80x = 925,323.24 × 384,106.96
  4. Step 4: Simplify right side
    670,574.80x = 355,423,096,733.75
  5. Step 5: Solve for x
    x = 355,423,096,733.75/670,574.80
  6. Step 6: Final answer
    x = 530,027.52

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1.5x scale

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.