Home / 551,217.48-760,688.10-309,552.36

Finding the Fourth Proportional to 551,217.48, 760,688.10 and 309,552.36

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Solution

The fourth proportional to 551,217.48, 760,688.10 and 309,552.36 is: 427,186.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,217.48 : 760,688.10 = 309,552.36 : x
  2. Step 2: Convert to fraction form
    551,217.48/760,688.10 = 309,552.36/x
  3. Step 3: Cross multiply
    551,217.48x = 760,688.10 × 309,552.36
  4. Step 4: Simplify right side
    551,217.48x = 235,472,796,578.92
  5. Step 5: Solve for x
    x = 235,472,796,578.92/551,217.48
  6. Step 6: Final answer
    x = 427,186.74

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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.