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Finding the Fourth Proportional to 677,655.30, 935,030.30 and 401,962.08

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Solution

The fourth proportional to 677,655.30, 935,030.30 and 401,962.08 is: 554,628.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,655.30 : 935,030.30 = 401,962.08 : x
  2. Step 2: Convert to fraction form
    677,655.30/935,030.30 = 401,962.08/x
  3. Step 3: Cross multiply
    677,655.30x = 935,030.30 × 401,962.08
  4. Step 4: Simplify right side
    677,655.30x = 375,846,724,251.02
  5. Step 5: Solve for x
    x = 375,846,724,251.02/677,655.30
  6. Step 6: Final answer
    x = 554,628.18

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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.