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Finding the Fourth Proportional to 672,573.80, 928,145.76 and 370,767.80

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Solution

The fourth proportional to 672,573.80, 928,145.76 and 370,767.80 is: 511,656.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,573.80 : 928,145.76 = 370,767.80 : x
  2. Step 2: Convert to fraction form
    672,573.80/928,145.76 = 370,767.80/x
  3. Step 3: Cross multiply
    672,573.80x = 928,145.76 × 370,767.80
  4. Step 4: Simplify right side
    672,573.80x = 344,126,562,444.51
  5. Step 5: Solve for x
    x = 344,126,562,444.51/672,573.80
  6. Step 6: Final answer
    x = 511,656.21

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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.