Home / 723,885.66-1,085,260.68-457,085.63

Finding the Fourth Proportional to 723,885.66, 1,085,260.68 and 457,085.63

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Solution

The fourth proportional to 723,885.66, 1,085,260.68 and 457,085.63 is: 685,269.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,885.66 : 1,085,260.68 = 457,085.63 : x
  2. Step 2: Convert to fraction form
    723,885.66/1,085,260.68 = 457,085.63/x
  3. Step 3: Cross multiply
    723,885.66x = 1,085,260.68 × 457,085.63
  4. Step 4: Simplify right side
    723,885.66x = 496,057,064,345.18
  5. Step 5: Solve for x
    x = 496,057,064,345.18/723,885.66
  6. Step 6: Final answer
    x = 685,269.91

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Double scale
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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.