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Finding the Fourth Proportional to 704,681.40, 972,455.40 and 382,383.24

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Solution

The fourth proportional to 704,681.40, 972,455.40 and 382,383.24 is: 527,686.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,681.40 : 972,455.40 = 382,383.24 : x
  2. Step 2: Convert to fraction form
    704,681.40/972,455.40 = 382,383.24/x
  3. Step 3: Cross multiply
    704,681.40x = 972,455.40 × 382,383.24
  4. Step 4: Simplify right side
    704,681.40x = 371,850,646,607.50
  5. Step 5: Solve for x
    x = 371,850,646,607.50/704,681.40
  6. Step 6: Final answer
    x = 527,686.19

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1.5x scale

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.