Home / 870,970.38-1,306,642.20-302,369.50

Finding the Fourth Proportional to 870,970.38, 1,306,642.20 and 302,369.50

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Solution

The fourth proportional to 870,970.38, 1,306,642.20 and 302,369.50 is: 453,619.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,970.38 : 1,306,642.20 = 302,369.50 : x
  2. Step 2: Convert to fraction form
    870,970.38/1,306,642.20 = 302,369.50/x
  3. Step 3: Cross multiply
    870,970.38x = 1,306,642.20 × 302,369.50
  4. Step 4: Simplify right side
    870,970.38x = 395,088,748,692.90
  5. Step 5: Solve for x
    x = 395,088,748,692.90/870,970.38
  6. Step 6: Final answer
    x = 453,619.04

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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.