Home / 825,412.70-1,139,541.45-631,463.06

Finding the Fourth Proportional to 825,412.70, 1,139,541.45 and 631,463.06

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Solution

The fourth proportional to 825,412.70, 1,139,541.45 and 631,463.06 is: 871,780.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,412.70 : 1,139,541.45 = 631,463.06 : x
  2. Step 2: Convert to fraction form
    825,412.70/1,139,541.45 = 631,463.06/x
  3. Step 3: Cross multiply
    825,412.70x = 1,139,541.45 × 631,463.06
  4. Step 4: Simplify right side
    825,412.70x = 719,578,331,013.84
  5. Step 5: Solve for x
    x = 719,578,331,013.84/825,412.70
  6. Step 6: Final answer
    x = 871,780.06

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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.