Home / 915,512.40-1,263,356.56-507,590.48

Finding the Fourth Proportional to 915,512.40, 1,263,356.56 and 507,590.48

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Solution

The fourth proportional to 915,512.40, 1,263,356.56 and 507,590.48 is: 700,446.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,512.40 : 1,263,356.56 = 507,590.48 : x
  2. Step 2: Convert to fraction form
    915,512.40/1,263,356.56 = 507,590.48/x
  3. Step 3: Cross multiply
    915,512.40x = 1,263,356.56 × 507,590.48
  4. Step 4: Simplify right side
    915,512.40x = 641,267,762,701.55
  5. Step 5: Solve for x
    x = 641,267,762,701.55/915,512.40
  6. Step 6: Final answer
    x = 700,446.83

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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.