Home / 859,484.52-1,288,894.68-290,714.40

Finding the Fourth Proportional to 859,484.52, 1,288,894.68 and 290,714.40

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Solution

The fourth proportional to 859,484.52, 1,288,894.68 and 290,714.40 is: 435,959.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,484.52 : 1,288,894.68 = 290,714.40 : x
  2. Step 2: Convert to fraction form
    859,484.52/1,288,894.68 = 290,714.40/x
  3. Step 3: Cross multiply
    859,484.52x = 1,288,894.68 × 290,714.40
  4. Step 4: Simplify right side
    859,484.52x = 374,700,243,559.39
  5. Step 5: Solve for x
    x = 374,700,243,559.39/859,484.52
  6. Step 6: Final answer
    x = 435,959.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.