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Finding the Fourth Proportional to 872,854.94, 1,308,630.12 and 602,210.78

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Solution

The fourth proportional to 872,854.94, 1,308,630.12 and 602,210.78 is: 902,866.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,854.94 : 1,308,630.12 = 602,210.78 : x
  2. Step 2: Convert to fraction form
    872,854.94/1,308,630.12 = 602,210.78/x
  3. Step 3: Cross multiply
    872,854.94x = 1,308,630.12 × 602,210.78
  4. Step 4: Simplify right side
    872,854.94x = 788,071,165,296.69
  5. Step 5: Solve for x
    x = 788,071,165,296.69/872,854.94
  6. Step 6: Final answer
    x = 902,866.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.