Home / 1,438,624.50-1,985,301.81-802,720.50

Finding the Fourth Proportional to 1,438,624.50, 1,985,301.81 and 802,720.50

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Solution

The fourth proportional to 1,438,624.50, 1,985,301.81 and 802,720.50 is: 1,107,754.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,438,624.50 : 1,985,301.81 = 802,720.50 : x
  2. Step 2: Convert to fraction form
    1,438,624.50/1,985,301.81 = 802,720.50/x
  3. Step 3: Cross multiply
    1,438,624.50x = 1,985,301.81 × 802,720.50
  4. Step 4: Simplify right side
    1,438,624.50x = 1,593,642,461,574.11
  5. Step 5: Solve for x
    x = 1,593,642,461,574.11/1,438,624.50
  6. Step 6: Final answer
    x = 1,107,754.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.