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Finding the Fourth Proportional to 487,451.98, 672,852.85 and 334,994.85

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Solution

The fourth proportional to 487,451.98, 672,852.85 and 334,994.85 is: 462,409.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,451.98 : 672,852.85 = 334,994.85 : x
  2. Step 2: Convert to fraction form
    487,451.98/672,852.85 = 334,994.85/x
  3. Step 3: Cross multiply
    487,451.98x = 672,852.85 × 334,994.85
  4. Step 4: Simplify right side
    487,451.98x = 225,402,238,720.34
  5. Step 5: Solve for x
    x = 225,402,238,720.34/487,451.98
  6. Step 6: Final answer
    x = 462,409.11

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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.