Home / 740,653.86-1,022,165.26-418,423.10

Finding the Fourth Proportional to 740,653.86, 1,022,165.26 and 418,423.10

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Solution

The fourth proportional to 740,653.86, 1,022,165.26 and 418,423.10 is: 577,459.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,653.86 : 1,022,165.26 = 418,423.10 : x
  2. Step 2: Convert to fraction form
    740,653.86/1,022,165.26 = 418,423.10/x
  3. Step 3: Cross multiply
    740,653.86x = 1,022,165.26 × 418,423.10
  4. Step 4: Simplify right side
    740,653.86x = 427,697,556,801.51
  5. Step 5: Solve for x
    x = 427,697,556,801.51/740,653.86
  6. Step 6: Final answer
    x = 577,459.43

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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.