Home / 947,704.79-1,307,813.32-517,988.00

Finding the Fourth Proportional to 947,704.79, 1,307,813.32 and 517,988.00

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Solution

The fourth proportional to 947,704.79, 1,307,813.32 and 517,988.00 is: 714,812.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,704.79 : 1,307,813.32 = 517,988.00 : x
  2. Step 2: Convert to fraction form
    947,704.79/1,307,813.32 = 517,988.00/x
  3. Step 3: Cross multiply
    947,704.79x = 1,307,813.32 × 517,988.00
  4. Step 4: Simplify right side
    947,704.79x = 677,431,605,984.11
  5. Step 5: Solve for x
    x = 677,431,605,984.11/947,704.79
  6. Step 6: Final answer
    x = 714,812.89

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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.