Home / 939,647.95-1,296,715.03-509,928.10

Finding the Fourth Proportional to 939,647.95, 1,296,715.03 and 509,928.10

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Solution

The fourth proportional to 939,647.95, 1,296,715.03 and 509,928.10 is: 703,701.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,647.95 : 1,296,715.03 = 509,928.10 : x
  2. Step 2: Convert to fraction form
    939,647.95/1,296,715.03 = 509,928.10/x
  3. Step 3: Cross multiply
    939,647.95x = 1,296,715.03 × 509,928.10
  4. Step 4: Simplify right side
    939,647.95x = 661,231,426,972.74
  5. Step 5: Solve for x
    x = 661,231,426,972.74/939,647.95
  6. Step 6: Final answer
    x = 703,701.24

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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.