Home / 1,019,061.20-1,528,397.40-309,112.40

Finding the Fourth Proportional to 1,019,061.20, 1,528,397.40 and 309,112.40

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Solution

The fourth proportional to 1,019,061.20, 1,528,397.40 and 309,112.40 is: 463,609.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,019,061.20 : 1,528,397.40 = 309,112.40 : x
  2. Step 2: Convert to fraction form
    1,019,061.20/1,528,397.40 = 309,112.40/x
  3. Step 3: Cross multiply
    1,019,061.20x = 1,528,397.40 × 309,112.40
  4. Step 4: Simplify right side
    1,019,061.20x = 472,446,588,467.76
  5. Step 5: Solve for x
    x = 472,446,588,467.76/1,019,061.20
  6. Step 6: Final answer
    x = 463,609.63

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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.