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Finding the Fourth Proportional to 631,570.96, 871,578.12 and 377,071.12

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Solution

The fourth proportional to 631,570.96, 871,578.12 and 377,071.12 is: 520,364.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,570.96 : 871,578.12 = 377,071.12 : x
  2. Step 2: Convert to fraction form
    631,570.96/871,578.12 = 377,071.12/x
  3. Step 3: Cross multiply
    631,570.96x = 871,578.12 × 377,071.12
  4. Step 4: Simplify right side
    631,570.96x = 328,646,937,875.89
  5. Step 5: Solve for x
    x = 328,646,937,875.89/631,570.96
  6. Step 6: Final answer
    x = 520,364.23

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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.