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Finding the Fourth Proportional to 562,627.09, 776,444.97 and 307,980.10

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Solution

The fourth proportional to 562,627.09, 776,444.97 and 307,980.10 is: 425,023.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,627.09 : 776,444.97 = 307,980.10 : x
  2. Step 2: Convert to fraction form
    562,627.09/776,444.97 = 307,980.10/x
  3. Step 3: Cross multiply
    562,627.09x = 776,444.97 × 307,980.10
  4. Step 4: Simplify right side
    562,627.09x = 239,129,599,505.10
  5. Step 5: Solve for x
    x = 239,129,599,505.10/562,627.09
  6. Step 6: Final answer
    x = 425,023.26

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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.