Home / 878,487.89-1,209,798.96-823,746.60

Finding the Fourth Proportional to 878,487.89, 1,209,798.96 and 823,746.60

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Solution

The fourth proportional to 878,487.89, 1,209,798.96 and 823,746.60 is: 1,134,412.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,487.89 : 1,209,798.96 = 823,746.60 : x
  2. Step 2: Convert to fraction form
    878,487.89/1,209,798.96 = 823,746.60/x
  3. Step 3: Cross multiply
    878,487.89x = 1,209,798.96 × 823,746.60
  4. Step 4: Simplify right side
    878,487.89x = 996,567,779,983.54
  5. Step 5: Solve for x
    x = 996,567,779,983.54/878,487.89
  6. Step 6: Final answer
    x = 1,134,412.66

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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.