Home / 615,411.49-922,821.83-290,929.43

Finding the Fourth Proportional to 615,411.49, 922,821.83 and 290,929.43

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Solution

The fourth proportional to 615,411.49, 922,821.83 and 290,929.43 is: 436,254.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,411.49 : 922,821.83 = 290,929.43 : x
  2. Step 2: Convert to fraction form
    615,411.49/922,821.83 = 290,929.43/x
  3. Step 3: Cross multiply
    615,411.49x = 922,821.83 × 290,929.43
  4. Step 4: Simplify right side
    615,411.49x = 268,476,029,845.86
  5. Step 5: Solve for x
    x = 268,476,029,845.86/615,411.49
  6. Step 6: Final answer
    x = 436,254.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.