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Finding the Fourth Proportional to 704,859.81, 972,707.60 and 382,570.02

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Solution

The fourth proportional to 704,859.81, 972,707.60 and 382,570.02 is: 527,947.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,859.81 : 972,707.60 = 382,570.02 : x
  2. Step 2: Convert to fraction form
    704,859.81/972,707.60 = 382,570.02/x
  3. Step 3: Cross multiply
    704,859.81x = 972,707.60 × 382,570.02
  4. Step 4: Simplify right side
    704,859.81x = 372,128,765,986.15
  5. Step 5: Solve for x
    x = 372,128,765,986.15/704,859.81
  6. Step 6: Final answer
    x = 527,947.21

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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.