Home / 631,681.04-871,722.12-345,205.52

Finding the Fourth Proportional to 631,681.04, 871,722.12 and 345,205.52

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Solution

The fourth proportional to 631,681.04, 871,722.12 and 345,205.52 is: 476,384.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,681.04 : 871,722.12 = 345,205.52 : x
  2. Step 2: Convert to fraction form
    631,681.04/871,722.12 = 345,205.52/x
  3. Step 3: Cross multiply
    631,681.04x = 871,722.12 × 345,205.52
  4. Step 4: Simplify right side
    631,681.04x = 300,923,287,730.10
  5. Step 5: Solve for x
    x = 300,923,287,730.10/631,681.04
  6. Step 6: Final answer
    x = 476,384.87

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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.