Home / 631,384.80-946,040.40-525,631.20

Finding the Fourth Proportional to 631,384.80, 946,040.40 and 525,631.20

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Solution

The fourth proportional to 631,384.80, 946,040.40 and 525,631.20 is: 787,583.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,384.80 : 946,040.40 = 525,631.20 : x
  2. Step 2: Convert to fraction form
    631,384.80/946,040.40 = 525,631.20/x
  3. Step 3: Cross multiply
    631,384.80x = 946,040.40 × 525,631.20
  4. Step 4: Simplify right side
    631,384.80x = 497,268,350,700.48
  5. Step 5: Solve for x
    x = 497,268,350,700.48/631,384.80
  6. Step 6: Final answer
    x = 787,583.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.