Home / 430,721.34-646,084.44-383,555.04

Finding the Fourth Proportional to 430,721.34, 646,084.44 and 383,555.04

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Solution

The fourth proportional to 430,721.34, 646,084.44 and 383,555.04 is: 575,334.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,721.34 : 646,084.44 = 383,555.04 : x
  2. Step 2: Convert to fraction form
    430,721.34/646,084.44 = 383,555.04/x
  3. Step 3: Cross multiply
    430,721.34x = 646,084.44 × 383,555.04
  4. Step 4: Simplify right side
    430,721.34x = 247,808,943,227.58
  5. Step 5: Solve for x
    x = 247,808,943,227.58/430,721.34
  6. Step 6: Final answer
    x = 575,334.72

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1.5x scale

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.