Home / 740,961.78-1,022,532.17-401,430.03

Finding the Fourth Proportional to 740,961.78, 1,022,532.17 and 401,430.03

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Solution

The fourth proportional to 740,961.78, 1,022,532.17 and 401,430.03 is: 553,976.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,961.78 : 1,022,532.17 = 401,430.03 : x
  2. Step 2: Convert to fraction form
    740,961.78/1,022,532.17 = 401,430.03/x
  3. Step 3: Cross multiply
    740,961.78x = 1,022,532.17 × 401,430.03
  4. Step 4: Simplify right side
    740,961.78x = 410,475,119,679.07
  5. Step 5: Solve for x
    x = 410,475,119,679.07/740,961.78
  6. Step 6: Final answer
    x = 553,976.10

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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.