Home / 562,320.80-776,008.32-307,682.72

Finding the Fourth Proportional to 562,320.80, 776,008.32 and 307,682.72

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Solution

The fourth proportional to 562,320.80, 776,008.32 and 307,682.72 is: 424,605.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,320.80 : 776,008.32 = 307,682.72 : x
  2. Step 2: Convert to fraction form
    562,320.80/776,008.32 = 307,682.72/x
  3. Step 3: Cross multiply
    562,320.80x = 776,008.32 × 307,682.72
  4. Step 4: Simplify right side
    562,320.80x = 238,764,350,640.23
  5. Step 5: Solve for x
    x = 238,764,350,640.23/562,320.80
  6. Step 6: Final answer
    x = 424,605.23

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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.