Home / 1,020,223.80-1,530,335.70-310,250.70

Finding the Fourth Proportional to 1,020,223.80, 1,530,335.70 and 310,250.70

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Solution

The fourth proportional to 1,020,223.80, 1,530,335.70 and 310,250.70 is: 465,376.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,223.80 : 1,530,335.70 = 310,250.70 : x
  2. Step 2: Convert to fraction form
    1,020,223.80/1,530,335.70 = 310,250.70/x
  3. Step 3: Cross multiply
    1,020,223.80x = 1,530,335.70 × 310,250.70
  4. Step 4: Simplify right side
    1,020,223.80x = 474,787,722,159.99
  5. Step 5: Solve for x
    x = 474,787,722,159.99/1,020,223.80
  6. Step 6: Final answer
    x = 465,376.05

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Double scale
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Similar ratio
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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.