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Finding the Fourth Proportional to 574,386.59, 862,039.16 and 258,868.10

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Solution

The fourth proportional to 574,386.59, 862,039.16 and 258,868.10 is: 388,509.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,386.59 : 862,039.16 = 258,868.10 : x
  2. Step 2: Convert to fraction form
    574,386.59/862,039.16 = 258,868.10/x
  3. Step 3: Cross multiply
    574,386.59x = 862,039.16 × 258,868.10
  4. Step 4: Simplify right side
    574,386.59x = 223,154,441,306.31
  5. Step 5: Solve for x
    x = 223,154,441,306.31/574,386.59
  6. Step 6: Final answer
    x = 388,509.14

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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.