Home / 1,020,137.28-1,530,291.57-310,171.47

Finding the Fourth Proportional to 1,020,137.28, 1,530,291.57 and 310,171.47

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Solution

The fourth proportional to 1,020,137.28, 1,530,291.57 and 310,171.47 is: 465,283.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,137.28 : 1,530,291.57 = 310,171.47 : x
  2. Step 2: Convert to fraction form
    1,020,137.28/1,530,291.57 = 310,171.47/x
  3. Step 3: Cross multiply
    1,020,137.28x = 1,530,291.57 × 310,171.47
  4. Step 4: Simplify right side
    1,020,137.28x = 474,652,785,795.51
  5. Step 5: Solve for x
    x = 474,652,785,795.51/1,020,137.28
  6. Step 6: Final answer
    x = 465,283.25

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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.