Home / 720,742.83-994,460.08-430,297.86

Finding the Fourth Proportional to 720,742.83, 994,460.08 and 430,297.86

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Solution

The fourth proportional to 720,742.83, 994,460.08 and 430,297.86 is: 593,712.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,742.83 : 994,460.08 = 430,297.86 : x
  2. Step 2: Convert to fraction form
    720,742.83/994,460.08 = 430,297.86/x
  3. Step 3: Cross multiply
    720,742.83x = 994,460.08 × 430,297.86
  4. Step 4: Simplify right side
    720,742.83x = 427,914,044,279.43
  5. Step 5: Solve for x
    x = 427,914,044,279.43/720,742.83
  6. Step 6: Final answer
    x = 593,712.52

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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.