Home / 631,689.04-871,733.16-345,213.52

Finding the Fourth Proportional to 631,689.04, 871,733.16 and 345,213.52

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Solution

The fourth proportional to 631,689.04, 871,733.16 and 345,213.52 is: 476,395.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,689.04 : 871,733.16 = 345,213.52 : x
  2. Step 2: Convert to fraction form
    631,689.04/871,733.16 = 345,213.52/x
  3. Step 3: Cross multiply
    631,689.04x = 871,733.16 × 345,213.52
  4. Step 4: Simplify right side
    631,689.04x = 300,934,072,664.32
  5. Step 5: Solve for x
    x = 300,934,072,664.32/631,689.04
  6. Step 6: Final answer
    x = 476,395.91

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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.