Home / 631,401.08-871,541.14-502,575.86

Finding the Fourth Proportional to 631,401.08, 871,541.14 and 502,575.86

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Solution

The fourth proportional to 631,401.08, 871,541.14 and 502,575.86 is: 693,719.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,401.08 : 871,541.14 = 502,575.86 : x
  2. Step 2: Convert to fraction form
    631,401.08/871,541.14 = 502,575.86/x
  3. Step 3: Cross multiply
    631,401.08x = 871,541.14 × 502,575.86
  4. Step 4: Simplify right side
    631,401.08x = 438,015,537,960.88
  5. Step 5: Solve for x
    x = 438,015,537,960.88/631,401.08
  6. Step 6: Final answer
    x = 693,719.97

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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.