Home / 478,730.40-718,095.60-292,106.40

Finding the Fourth Proportional to 478,730.40, 718,095.60 and 292,106.40

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Solution

The fourth proportional to 478,730.40, 718,095.60 and 292,106.40 is: 438,159.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,730.40 : 718,095.60 = 292,106.40 : x
  2. Step 2: Convert to fraction form
    478,730.40/718,095.60 = 292,106.40/x
  3. Step 3: Cross multiply
    478,730.40x = 718,095.60 × 292,106.40
  4. Step 4: Simplify right side
    478,730.40x = 209,760,320,571.84
  5. Step 5: Solve for x
    x = 209,760,320,571.84/478,730.40
  6. Step 6: Final answer
    x = 438,159.60

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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.