Home / 870,585.72-1,201,408.29-488,612.50

Finding the Fourth Proportional to 870,585.72, 1,201,408.29 and 488,612.50

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Solution

The fourth proportional to 870,585.72, 1,201,408.29 and 488,612.50 is: 674,285.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,585.72 : 1,201,408.29 = 488,612.50 : x
  2. Step 2: Convert to fraction form
    870,585.72/1,201,408.29 = 488,612.50/x
  3. Step 3: Cross multiply
    870,585.72x = 1,201,408.29 × 488,612.50
  4. Step 4: Simplify right side
    870,585.72x = 587,023,108,097.63
  5. Step 5: Solve for x
    x = 587,023,108,097.63/870,585.72
  6. Step 6: Final answer
    x = 674,285.25

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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.