Home / 875,846.20-1,313,963.70-402,417.40

Finding the Fourth Proportional to 875,846.20, 1,313,963.70 and 402,417.40

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Solution

The fourth proportional to 875,846.20, 1,313,963.70 and 402,417.40 is: 603,715.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,846.20 : 1,313,963.70 = 402,417.40 : x
  2. Step 2: Convert to fraction form
    875,846.20/1,313,963.70 = 402,417.40/x
  3. Step 3: Cross multiply
    875,846.20x = 1,313,963.70 × 402,417.40
  4. Step 4: Simplify right side
    875,846.20x = 528,761,855,848.38
  5. Step 5: Solve for x
    x = 528,761,855,848.38/875,846.20
  6. Step 6: Final answer
    x = 603,715.42

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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.