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Finding the Fourth Proportional to 636,746.58, 878,714.46 and 350,259.30

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Solution

The fourth proportional to 636,746.58, 878,714.46 and 350,259.30 is: 483,360.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,746.58 : 878,714.46 = 350,259.30 : x
  2. Step 2: Convert to fraction form
    636,746.58/878,714.46 = 350,259.30/x
  3. Step 3: Cross multiply
    636,746.58x = 878,714.46 × 350,259.30
  4. Step 4: Simplify right side
    636,746.58x = 307,777,911,659.48
  5. Step 5: Solve for x
    x = 307,777,911,659.48/636,746.58
  6. Step 6: Final answer
    x = 483,360.13

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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.