Home / 1,242,005.70-1,863,008.55-355,541.70

Finding the Fourth Proportional to 1,242,005.70, 1,863,008.55 and 355,541.70

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Solution

The fourth proportional to 1,242,005.70, 1,863,008.55 and 355,541.70 is: 533,312.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242,005.70 : 1,863,008.55 = 355,541.70 : x
  2. Step 2: Convert to fraction form
    1,242,005.70/1,863,008.55 = 355,541.70/x
  3. Step 3: Cross multiply
    1,242,005.70x = 1,863,008.55 × 355,541.70
  4. Step 4: Simplify right side
    1,242,005.70x = 662,377,226,981.54
  5. Step 5: Solve for x
    x = 662,377,226,981.54/1,242,005.70
  6. Step 6: Final answer
    x = 533,312.55

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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.