Home / 724,695.65-1,087,036.52-440,464.63

Finding the Fourth Proportional to 724,695.65, 1,087,036.52 and 440,464.63

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Solution

The fourth proportional to 724,695.65, 1,087,036.52 and 440,464.63 is: 660,692.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,695.65 : 1,087,036.52 = 440,464.63 : x
  2. Step 2: Convert to fraction form
    724,695.65/1,087,036.52 = 440,464.63/x
  3. Step 3: Cross multiply
    724,695.65x = 1,087,036.52 × 440,464.63
  4. Step 4: Simplify right side
    724,695.65x = 478,801,133,658.37
  5. Step 5: Solve for x
    x = 478,801,133,658.37/724,695.65
  6. Step 6: Final answer
    x = 660,692.71

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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.