Home / 688,767.08-1,032,920.99-289,333.40

Finding the Fourth Proportional to 688,767.08, 1,032,920.99 and 289,333.40

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Solution

The fourth proportional to 688,767.08, 1,032,920.99 and 289,333.40 is: 433,903.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,767.08 : 1,032,920.99 = 289,333.40 : x
  2. Step 2: Convert to fraction form
    688,767.08/1,032,920.99 = 289,333.40/x
  3. Step 3: Cross multiply
    688,767.08x = 1,032,920.99 × 289,333.40
  4. Step 4: Simplify right side
    688,767.08x = 298,858,535,356.79
  5. Step 5: Solve for x
    x = 298,858,535,356.79/688,767.08
  6. Step 6: Final answer
    x = 433,903.63

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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.