Home / 478,968.90-660,981.69-264,116.58

Finding the Fourth Proportional to 478,968.90, 660,981.69 and 264,116.58

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Solution

The fourth proportional to 478,968.90, 660,981.69 and 264,116.58 is: 364,483.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,968.90 : 660,981.69 = 264,116.58 : x
  2. Step 2: Convert to fraction form
    478,968.90/660,981.69 = 264,116.58/x
  3. Step 3: Cross multiply
    478,968.90x = 660,981.69 × 264,116.58
  4. Step 4: Simplify right side
    478,968.90x = 174,576,223,405.42
  5. Step 5: Solve for x
    x = 174,576,223,405.42/478,968.90
  6. Step 6: Final answer
    x = 364,483.42

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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.