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Finding the Fourth Proportional to 478,672.51, 660,559.51 and 260,883.16

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Solution

The fourth proportional to 478,672.51, 660,559.51 and 260,883.16 is: 360,014.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,672.51 : 660,559.51 = 260,883.16 : x
  2. Step 2: Convert to fraction form
    478,672.51/660,559.51 = 260,883.16/x
  3. Step 3: Cross multiply
    478,672.51x = 660,559.51 × 260,883.16
  4. Step 4: Simplify right side
    478,672.51x = 172,328,852,336.85
  5. Step 5: Solve for x
    x = 172,328,852,336.85/478,672.51
  6. Step 6: Final answer
    x = 360,014.10

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1.5x scale

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.