Home / 1,445,920.40-2,168,491.80-435,040.40

Finding the Fourth Proportional to 1,445,920.40, 2,168,491.80 and 435,040.40

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Solution

The fourth proportional to 1,445,920.40, 2,168,491.80 and 435,040.40 is: 652,443.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,445,920.40 : 2,168,491.80 = 435,040.40 : x
  2. Step 2: Convert to fraction form
    1,445,920.40/2,168,491.80 = 435,040.40/x
  3. Step 3: Cross multiply
    1,445,920.40x = 2,168,491.80 × 435,040.40
  4. Step 4: Simplify right side
    1,445,920.40x = 943,381,540,068.72
  5. Step 5: Solve for x
    x = 943,381,540,068.72/1,445,920.40
  6. Step 6: Final answer
    x = 652,443.62

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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.