Home / 1,275,462.38-1,913,463.47-422,485.74

Finding the Fourth Proportional to 1,275,462.38, 1,913,463.47 and 422,485.74

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Solution

The fourth proportional to 1,275,462.38, 1,913,463.47 and 422,485.74 is: 633,818.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,275,462.38 : 1,913,463.47 = 422,485.74 : x
  2. Step 2: Convert to fraction form
    1,275,462.38/1,913,463.47 = 422,485.74/x
  3. Step 3: Cross multiply
    1,275,462.38x = 1,913,463.47 × 422,485.74
  4. Step 4: Simplify right side
    1,275,462.38x = 808,411,031,142.13
  5. Step 5: Solve for x
    x = 808,411,031,142.13/1,275,462.38
  6. Step 6: Final answer
    x = 633,818.01

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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.