Home / 1,018,300.38-1,527,450.54-260,143.50

Finding the Fourth Proportional to 1,018,300.38, 1,527,450.54 and 260,143.50

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Solution

The fourth proportional to 1,018,300.38, 1,527,450.54 and 260,143.50 is: 390,215.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,018,300.38 : 1,527,450.54 = 260,143.50 : x
  2. Step 2: Convert to fraction form
    1,018,300.38/1,527,450.54 = 260,143.50/x
  3. Step 3: Cross multiply
    1,018,300.38x = 1,527,450.54 × 260,143.50
  4. Step 4: Simplify right side
    1,018,300.38x = 397,356,326,444.64
  5. Step 5: Solve for x
    x = 397,356,326,444.64/1,018,300.38
  6. Step 6: Final answer
    x = 390,215.24

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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.