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Finding the Fourth Proportional to 478,641.82, 660,516.84 and 260,852.24

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Solution

The fourth proportional to 478,641.82, 660,516.84 and 260,852.24 is: 359,971.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,641.82 : 660,516.84 = 260,852.24 : x
  2. Step 2: Convert to fraction form
    478,641.82/660,516.84 = 260,852.24/x
  3. Step 3: Cross multiply
    478,641.82x = 660,516.84 × 260,852.24
  4. Step 4: Simplify right side
    478,641.82x = 172,297,297,271.72
  5. Step 5: Solve for x
    x = 172,297,297,271.72/478,641.82
  6. Step 6: Final answer
    x = 359,971.26

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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.