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Finding the Fourth Proportional to 562,995.18, 776,904.48 and 308,340.90

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Solution

The fourth proportional to 562,995.18, 776,904.48 and 308,340.90 is: 425,494.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,995.18 : 776,904.48 = 308,340.90 : x
  2. Step 2: Convert to fraction form
    562,995.18/776,904.48 = 308,340.90/x
  3. Step 3: Cross multiply
    562,995.18x = 776,904.48 × 308,340.90
  4. Step 4: Simplify right side
    562,995.18x = 239,551,426,577.23
  5. Step 5: Solve for x
    x = 239,551,426,577.23/562,995.18
  6. Step 6: Final answer
    x = 425,494.63

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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.