Home / 765,365.60-1,148,485.80-292,390.40

Finding the Fourth Proportional to 765,365.60, 1,148,485.80 and 292,390.40

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Solution

The fourth proportional to 765,365.60, 1,148,485.80 and 292,390.40 is: 438,752.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,365.60 : 1,148,485.80 = 292,390.40 : x
  2. Step 2: Convert to fraction form
    765,365.60/1,148,485.80 = 292,390.40/x
  3. Step 3: Cross multiply
    765,365.60x = 1,148,485.80 × 292,390.40
  4. Step 4: Simplify right side
    765,365.60x = 335,806,222,456.32
  5. Step 5: Solve for x
    x = 335,806,222,456.32/765,365.60
  6. Step 6: Final answer
    x = 438,752.70

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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.