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Finding the Fourth Proportional to 584,420.40, 877,286.70 and 451,888.20

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Solution

The fourth proportional to 584,420.40, 877,286.70 and 451,888.20 is: 678,339.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,420.40 : 877,286.70 = 451,888.20 : x
  2. Step 2: Convert to fraction form
    584,420.40/877,286.70 = 451,888.20/x
  3. Step 3: Cross multiply
    584,420.40x = 877,286.70 × 451,888.20
  4. Step 4: Simplify right side
    584,420.40x = 396,435,507,746.94
  5. Step 5: Solve for x
    x = 396,435,507,746.94/584,420.40
  6. Step 6: Final answer
    x = 678,339.61

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1.5x scale

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.