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Finding the Fourth Proportional to 710,319.00, 980,227.91 and 388,020.81

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Solution

The fourth proportional to 710,319.00, 980,227.91 and 388,020.81 is: 535,462.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,319.00 : 980,227.91 = 388,020.81 : x
  2. Step 2: Convert to fraction form
    710,319.00/980,227.91 = 388,020.81/x
  3. Step 3: Cross multiply
    710,319.00x = 980,227.91 × 388,020.81
  4. Step 4: Simplify right side
    710,319.00x = 380,348,832,268.71
  5. Step 5: Solve for x
    x = 380,348,832,268.71/710,319.00
  6. Step 6: Final answer
    x = 535,462.00

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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.