Home / 783,336.74-1,081,007.45-493,140.30

Finding the Fourth Proportional to 783,336.74, 1,081,007.45 and 493,140.30

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Solution

The fourth proportional to 783,336.74, 1,081,007.45 and 493,140.30 is: 680,535.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,336.74 : 1,081,007.45 = 493,140.30 : x
  2. Step 2: Convert to fraction form
    783,336.74/1,081,007.45 = 493,140.30/x
  3. Step 3: Cross multiply
    783,336.74x = 1,081,007.45 × 493,140.30
  4. Step 4: Simplify right side
    783,336.74x = 533,088,338,195.24
  5. Step 5: Solve for x
    x = 533,088,338,195.24/783,336.74
  6. Step 6: Final answer
    x = 680,535.34

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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.