Home / 913,065.21-1,369,823.20-281,979.02

Finding the Fourth Proportional to 913,065.21, 1,369,823.20 and 281,979.02

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Solution

The fourth proportional to 913,065.21, 1,369,823.20 and 281,979.02 is: 423,038.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,065.21 : 1,369,823.20 = 281,979.02 : x
  2. Step 2: Convert to fraction form
    913,065.21/1,369,823.20 = 281,979.02/x
  3. Step 3: Cross multiply
    913,065.21x = 1,369,823.20 × 281,979.02
  4. Step 4: Simplify right side
    913,065.21x = 386,261,406,228.87
  5. Step 5: Solve for x
    x = 386,261,406,228.87/913,065.21
  6. Step 6: Final answer
    x = 423,038.14

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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.