Home / 1,012,520.70-1,397,279.85-553,637.34

Finding the Fourth Proportional to 1,012,520.70, 1,397,279.85 and 553,637.34

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Solution

The fourth proportional to 1,012,520.70, 1,397,279.85 and 553,637.34 is: 764,020.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,012,520.70 : 1,397,279.85 = 553,637.34 : x
  2. Step 2: Convert to fraction form
    1,012,520.70/1,397,279.85 = 553,637.34/x
  3. Step 3: Cross multiply
    1,012,520.70x = 1,397,279.85 × 553,637.34
  4. Step 4: Simplify right side
    1,012,520.70x = 773,586,299,389.60
  5. Step 5: Solve for x
    x = 773,586,299,389.60/1,012,520.70
  6. Step 6: Final answer
    x = 764,020.23

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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.