Home / 841,866.13-1,161,776.31-479,289.98

Finding the Fourth Proportional to 841,866.13, 1,161,776.31 and 479,289.98

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Solution

The fourth proportional to 841,866.13, 1,161,776.31 and 479,289.98 is: 661,420.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    841,866.13 : 1,161,776.31 = 479,289.98 : x
  2. Step 2: Convert to fraction form
    841,866.13/1,161,776.31 = 479,289.98/x
  3. Step 3: Cross multiply
    841,866.13x = 1,161,776.31 × 479,289.98
  4. Step 4: Simplify right side
    841,866.13x = 556,827,743,186.15
  5. Step 5: Solve for x
    x = 556,827,743,186.15/841,866.13
  6. Step 6: Final answer
    x = 661,420.77

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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.