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Finding the Fourth Proportional to 507,923.20, 761,193.60 and 360,006.40

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Solution

The fourth proportional to 507,923.20, 761,193.60 and 360,006.40 is: 539,519.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,923.20 : 761,193.60 = 360,006.40 : x
  2. Step 2: Convert to fraction form
    507,923.20/761,193.60 = 360,006.40/x
  3. Step 3: Cross multiply
    507,923.20x = 761,193.60 × 360,006.40
  4. Step 4: Simplify right side
    507,923.20x = 274,034,567,639.04
  5. Step 5: Solve for x
    x = 274,034,567,639.04/507,923.20
  6. Step 6: Final answer
    x = 539,519.69

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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.