Home / 839,423.54-1,158,370.80-457,442.12

Finding the Fourth Proportional to 839,423.54, 1,158,370.80 and 457,442.12

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Solution

The fourth proportional to 839,423.54, 1,158,370.80 and 457,442.12 is: 631,251.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,423.54 : 1,158,370.80 = 457,442.12 : x
  2. Step 2: Convert to fraction form
    839,423.54/1,158,370.80 = 457,442.12/x
  3. Step 3: Cross multiply
    839,423.54x = 1,158,370.80 × 457,442.12
  4. Step 4: Simplify right side
    839,423.54x = 529,887,594,498.10
  5. Step 5: Solve for x
    x = 529,887,594,498.10/839,423.54
  6. Step 6: Final answer
    x = 631,251.77

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Double scale
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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.