Home / 913,533.38-1,370,392.14-314,415.80

Finding the Fourth Proportional to 913,533.38, 1,370,392.14 and 314,415.80

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Solution

The fourth proportional to 913,533.38, 1,370,392.14 and 314,415.80 is: 471,655.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,533.38 : 1,370,392.14 = 314,415.80 : x
  2. Step 2: Convert to fraction form
    913,533.38/1,370,392.14 = 314,415.80/x
  3. Step 3: Cross multiply
    913,533.38x = 1,370,392.14 × 314,415.80
  4. Step 4: Simplify right side
    913,533.38x = 430,872,941,011.81
  5. Step 5: Solve for x
    x = 430,872,941,011.81/913,533.38
  6. Step 6: Final answer
    x = 471,655.39

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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.