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Finding the Fourth Proportional to 710,591.00, 980,574.26 and 388,303.74

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Solution

The fourth proportional to 710,591.00, 980,574.26 and 388,303.74 is: 535,836.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,591.00 : 980,574.26 = 388,303.74 : x
  2. Step 2: Convert to fraction form
    710,591.00/980,574.26 = 388,303.74/x
  3. Step 3: Cross multiply
    710,591.00x = 980,574.26 × 388,303.74
  4. Step 4: Simplify right side
    710,591.00x = 380,760,650,564.21
  5. Step 5: Solve for x
    x = 380,760,650,564.21/710,591.00
  6. Step 6: Final answer
    x = 535,836.58

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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.