Home / 423,172.04-584,140.01-287,266.73

Finding the Fourth Proportional to 423,172.04, 584,140.01 and 287,266.73

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Solution

The fourth proportional to 423,172.04, 584,140.01 and 287,266.73 is: 396,538.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,172.04 : 584,140.01 = 287,266.73 : x
  2. Step 2: Convert to fraction form
    423,172.04/584,140.01 = 287,266.73/x
  3. Step 3: Cross multiply
    423,172.04x = 584,140.01 × 287,266.73
  4. Step 4: Simplify right side
    423,172.04x = 167,803,986,177.83
  5. Step 5: Solve for x
    x = 167,803,986,177.83/423,172.04
  6. Step 6: Final answer
    x = 396,538.46

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1.5x scale

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.