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Finding the Fourth Proportional to 562,513.18, 776,263.62 and 307,863.76

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Solution

The fourth proportional to 562,513.18, 776,263.62 and 307,863.76 is: 424,849.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,513.18 : 776,263.62 = 307,863.76 : x
  2. Step 2: Convert to fraction form
    562,513.18/776,263.62 = 307,863.76/x
  3. Step 3: Cross multiply
    562,513.18x = 776,263.62 × 307,863.76
  4. Step 4: Simplify right side
    562,513.18x = 238,983,436,804.41
  5. Step 5: Solve for x
    x = 238,983,436,804.41/562,513.18
  6. Step 6: Final answer
    x = 424,849.49

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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.