Home / 743,670.16-1,026,275.90-404,138.68

Finding the Fourth Proportional to 743,670.16, 1,026,275.90 and 404,138.68

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Solution

The fourth proportional to 743,670.16, 1,026,275.90 and 404,138.68 is: 557,717.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,670.16 : 1,026,275.90 = 404,138.68 : x
  2. Step 2: Convert to fraction form
    743,670.16/1,026,275.90 = 404,138.68/x
  3. Step 3: Cross multiply
    743,670.16x = 1,026,275.90 × 404,138.68
  4. Step 4: Simplify right side
    743,670.16x = 414,757,787,541.81
  5. Step 5: Solve for x
    x = 414,757,787,541.81/743,670.16
  6. Step 6: Final answer
    x = 557,717.40

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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.