Home / 401,860.80-602,572.20-121,341.60

Finding the Fourth Proportional to 401,860.80, 602,572.20 and 121,341.60

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Solution

The fourth proportional to 401,860.80, 602,572.20 and 121,341.60 is: 181,946.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,860.80 : 602,572.20 = 121,341.60 : x
  2. Step 2: Convert to fraction form
    401,860.80/602,572.20 = 121,341.60/x
  3. Step 3: Cross multiply
    401,860.80x = 602,572.20 × 121,341.60
  4. Step 4: Simplify right side
    401,860.80x = 73,117,074,863.52
  5. Step 5: Solve for x
    x = 73,117,074,863.52/401,860.80
  6. Step 6: Final answer
    x = 181,946.27

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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.