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Finding the Fourth Proportional to 428,969.71, 592,030.70 and 247,681.34

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Solution

The fourth proportional to 428,969.71, 592,030.70 and 247,681.34 is: 341,830.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,969.71 : 592,030.70 = 247,681.34 : x
  2. Step 2: Convert to fraction form
    428,969.71/592,030.70 = 247,681.34/x
  3. Step 3: Cross multiply
    428,969.71x = 592,030.70 × 247,681.34
  4. Step 4: Simplify right side
    428,969.71x = 146,634,952,898.58
  5. Step 5: Solve for x
    x = 146,634,952,898.58/428,969.71
  6. Step 6: Final answer
    x = 341,830.55

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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.