Home / 761,349.72-1,140,778.68-460,919.70

Finding the Fourth Proportional to 761,349.72, 1,140,778.68 and 460,919.70

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Solution

The fourth proportional to 761,349.72, 1,140,778.68 and 460,919.70 is: 690,625.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,349.72 : 1,140,778.68 = 460,919.70 : x
  2. Step 2: Convert to fraction form
    761,349.72/1,140,778.68 = 460,919.70/x
  3. Step 3: Cross multiply
    761,349.72x = 1,140,778.68 × 460,919.70
  4. Step 4: Simplify right side
    761,349.72x = 525,807,366,952.00
  5. Step 5: Solve for x
    x = 525,807,366,952.00/761,349.72
  6. Step 6: Final answer
    x = 690,625.28

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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.