Home / 822,499.78-1,233,345.02-289,943.40

Finding the Fourth Proportional to 822,499.78, 1,233,345.02 and 289,943.40

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Solution

The fourth proportional to 822,499.78, 1,233,345.02 and 289,943.40 is: 434,772.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    822,499.78 : 1,233,345.02 = 289,943.40 : x
  2. Step 2: Convert to fraction form
    822,499.78/1,233,345.02 = 289,943.40/x
  3. Step 3: Cross multiply
    822,499.78x = 1,233,345.02 × 289,943.40
  4. Step 4: Simplify right side
    822,499.78x = 357,600,248,471.87
  5. Step 5: Solve for x
    x = 357,600,248,471.87/822,499.78
  6. Step 6: Final answer
    x = 434,772.45

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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.