Home / 478,848.20-718,272.30-401,865.80

Finding the Fourth Proportional to 478,848.20, 718,272.30 and 401,865.80

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Solution

The fourth proportional to 478,848.20, 718,272.30 and 401,865.80 is: 602,798.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,848.20 : 718,272.30 = 401,865.80 : x
  2. Step 2: Convert to fraction form
    478,848.20/718,272.30 = 401,865.80/x
  3. Step 3: Cross multiply
    478,848.20x = 718,272.30 × 401,865.80
  4. Step 4: Simplify right side
    478,848.20x = 288,649,072,457.34
  5. Step 5: Solve for x
    x = 288,649,072,457.34/478,848.20
  6. Step 6: Final answer
    x = 602,798.70

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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.