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Finding the Fourth Proportional to 649,392.60, 895,581.54 and 407,697.69

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Solution

The fourth proportional to 649,392.60, 895,581.54 and 407,697.69 is: 562,258.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,392.60 : 895,581.54 = 407,697.69 : x
  2. Step 2: Convert to fraction form
    649,392.60/895,581.54 = 407,697.69/x
  3. Step 3: Cross multiply
    649,392.60x = 895,581.54 × 407,697.69
  4. Step 4: Simplify right side
    649,392.60x = 365,126,525,064.64
  5. Step 5: Solve for x
    x = 365,126,525,064.64/649,392.60
  6. Step 6: Final answer
    x = 562,258.52

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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.