Home / 1,020,142.76-1,530,299.79-310,176.95

Finding the Fourth Proportional to 1,020,142.76, 1,530,299.79 and 310,176.95

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Solution

The fourth proportional to 1,020,142.76, 1,530,299.79 and 310,176.95 is: 465,291.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,142.76 : 1,530,299.79 = 310,176.95 : x
  2. Step 2: Convert to fraction form
    1,020,142.76/1,530,299.79 = 310,176.95/x
  3. Step 3: Cross multiply
    1,020,142.76x = 1,530,299.79 × 310,176.95
  4. Step 4: Simplify right side
    1,020,142.76x = 474,663,713,796.34
  5. Step 5: Solve for x
    x = 474,663,713,796.34/1,020,142.76
  6. Step 6: Final answer
    x = 465,291.46

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Double scale
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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.