Home / 430,341.87-645,076.89-216,463.53

Finding the Fourth Proportional to 430,341.87, 645,076.89 and 216,463.53

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Solution

The fourth proportional to 430,341.87, 645,076.89 and 216,463.53 is: 324,476.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,341.87 : 645,076.89 = 216,463.53 : x
  2. Step 2: Convert to fraction form
    430,341.87/645,076.89 = 216,463.53/x
  3. Step 3: Cross multiply
    430,341.87x = 645,076.89 × 216,463.53
  4. Step 4: Simplify right side
    430,341.87x = 139,635,620,730.82
  5. Step 5: Solve for x
    x = 139,635,620,730.82/430,341.87
  6. Step 6: Final answer
    x = 324,476.03

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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.