Home / 1,018,807.70-1,528,211.55-308,800.58

Finding the Fourth Proportional to 1,018,807.70, 1,528,211.55 and 308,800.58

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Solution

The fourth proportional to 1,018,807.70, 1,528,211.55 and 308,800.58 is: 463,200.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,018,807.70 : 1,528,211.55 = 308,800.58 : x
  2. Step 2: Convert to fraction form
    1,018,807.70/1,528,211.55 = 308,800.58/x
  3. Step 3: Cross multiply
    1,018,807.70x = 1,528,211.55 × 308,800.58
  4. Step 4: Simplify right side
    1,018,807.70x = 471,912,613,002.70
  5. Step 5: Solve for x
    x = 471,912,613,002.70/1,018,807.70
  6. Step 6: Final answer
    x = 463,200.87

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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.