Home / 922,616.64-1,383,983.32-390,038.40

Finding the Fourth Proportional to 922,616.64, 1,383,983.32 and 390,038.40

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Solution

The fourth proportional to 922,616.64, 1,383,983.32 and 390,038.40 is: 585,082.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,616.64 : 1,383,983.32 = 390,038.40 : x
  2. Step 2: Convert to fraction form
    922,616.64/1,383,983.32 = 390,038.40/x
  3. Step 3: Cross multiply
    922,616.64x = 1,383,983.32 × 390,038.40
  4. Step 4: Simplify right side
    922,616.64x = 539,806,639,759.49
  5. Step 5: Solve for x
    x = 539,806,639,759.49/922,616.64
  6. Step 6: Final answer
    x = 585,082.27

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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.