Home / 626,742.91-864,925.05-354,805.86

Finding the Fourth Proportional to 626,742.91, 864,925.05 and 354,805.86

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Solution

The fourth proportional to 626,742.91, 864,925.05 and 354,805.86 is: 489,643.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,742.91 : 864,925.05 = 354,805.86 : x
  2. Step 2: Convert to fraction form
    626,742.91/864,925.05 = 354,805.86/x
  3. Step 3: Cross multiply
    626,742.91x = 864,925.05 × 354,805.86
  4. Step 4: Simplify right side
    626,742.91x = 306,880,476,200.79
  5. Step 5: Solve for x
    x = 306,880,476,200.79/626,742.91
  6. Step 6: Final answer
    x = 489,643.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.