Home / 725,465.02-1,001,142.40-403,205.26

Finding the Fourth Proportional to 725,465.02, 1,001,142.40 and 403,205.26

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Solution

The fourth proportional to 725,465.02, 1,001,142.40 and 403,205.26 is: 556,423.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,465.02 : 1,001,142.40 = 403,205.26 : x
  2. Step 2: Convert to fraction form
    725,465.02/1,001,142.40 = 403,205.26/x
  3. Step 3: Cross multiply
    725,465.02x = 1,001,142.40 × 403,205.26
  4. Step 4: Simplify right side
    725,465.02x = 403,665,881,689.02
  5. Step 5: Solve for x
    x = 403,665,881,689.02/725,465.02
  6. Step 6: Final answer
    x = 556,423.63

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Double scale
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Similar ratio
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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.