Home / 430,826.64-645,277.67-312,225.63

Finding the Fourth Proportional to 430,826.64, 645,277.67 and 312,225.63

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Solution

The fourth proportional to 430,826.64, 645,277.67 and 312,225.63 is: 467,641.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,826.64 : 645,277.67 = 312,225.63 : x
  2. Step 2: Convert to fraction form
    430,826.64/645,277.67 = 312,225.63/x
  3. Step 3: Cross multiply
    430,826.64x = 645,277.67 × 312,225.63
  4. Step 4: Simplify right side
    430,826.64x = 201,472,227,040.68
  5. Step 5: Solve for x
    x = 201,472,227,040.68/430,826.64
  6. Step 6: Final answer
    x = 467,641.06

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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.