Home / 472,421.22-651,945.12-257,562.84

Finding the Fourth Proportional to 472,421.22, 651,945.12 and 257,562.84

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Solution

The fourth proportional to 472,421.22, 651,945.12 and 257,562.84 is: 355,438.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,421.22 : 651,945.12 = 257,562.84 : x
  2. Step 2: Convert to fraction form
    472,421.22/651,945.12 = 257,562.84/x
  3. Step 3: Cross multiply
    472,421.22x = 651,945.12 × 257,562.84
  4. Step 4: Simplify right side
    472,421.22x = 167,916,836,631.34
  5. Step 5: Solve for x
    x = 167,916,836,631.34/472,421.22
  6. Step 6: Final answer
    x = 355,438.81

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1.5x scale

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.