Home / 390,506.79-584,929.57-230,410.18

Finding the Fourth Proportional to 390,506.79, 584,929.57 and 230,410.18

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Solution

The fourth proportional to 390,506.79, 584,929.57 and 230,410.18 is: 345,125.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,506.79 : 584,929.57 = 230,410.18 : x
  2. Step 2: Convert to fraction form
    390,506.79/584,929.57 = 230,410.18/x
  3. Step 3: Cross multiply
    390,506.79x = 584,929.57 × 230,410.18
  4. Step 4: Simplify right side
    390,506.79x = 134,773,727,511.02
  5. Step 5: Solve for x
    x = 134,773,727,511.02/390,506.79
  6. Step 6: Final answer
    x = 345,125.18

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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.