Home / 915,365.49-1,263,278.97-507,595.20

Finding the Fourth Proportional to 915,365.49, 1,263,278.97 and 507,595.20

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Solution

The fourth proportional to 915,365.49, 1,263,278.97 and 507,595.20 is: 700,522.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,365.49 : 1,263,278.97 = 507,595.20 : x
  2. Step 2: Convert to fraction form
    915,365.49/1,263,278.97 = 507,595.20/x
  3. Step 3: Cross multiply
    915,365.49x = 1,263,278.97 × 507,595.20
  4. Step 4: Simplify right side
    915,365.49x = 641,234,341,432.94
  5. Step 5: Solve for x
    x = 641,234,341,432.94/915,365.49
  6. Step 6: Final answer
    x = 700,522.74

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.