Home / 579,374.40-869,061.60-358,190.40

Finding the Fourth Proportional to 579,374.40, 869,061.60 and 358,190.40

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Solution

The fourth proportional to 579,374.40, 869,061.60 and 358,190.40 is: 537,285.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,374.40 : 869,061.60 = 358,190.40 : x
  2. Step 2: Convert to fraction form
    579,374.40/869,061.60 = 358,190.40/x
  3. Step 3: Cross multiply
    579,374.40x = 869,061.60 × 358,190.40
  4. Step 4: Simplify right side
    579,374.40x = 311,289,522,128.64
  5. Step 5: Solve for x
    x = 311,289,522,128.64/579,374.40
  6. Step 6: Final answer
    x = 537,285.60

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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.