Home / 1,417,428.80-2,126,357.40-457,563.68

Finding the Fourth Proportional to 1,417,428.80, 2,126,357.40 and 457,563.68

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Solution

The fourth proportional to 1,417,428.80, 2,126,357.40 and 457,563.68 is: 686,414.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,417,428.80 : 2,126,357.40 = 457,563.68 : x
  2. Step 2: Convert to fraction form
    1,417,428.80/2,126,357.40 = 457,563.68/x
  3. Step 3: Cross multiply
    1,417,428.80x = 2,126,357.40 × 457,563.68
  4. Step 4: Simplify right side
    1,417,428.80x = 972,943,916,939.23
  5. Step 5: Solve for x
    x = 972,943,916,939.23/1,417,428.80
  6. Step 6: Final answer
    x = 686,414.67

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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.