Home / 684,032.07-943,927.38-378,090.21

Finding the Fourth Proportional to 684,032.07, 943,927.38 and 378,090.21

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Solution

The fourth proportional to 684,032.07, 943,927.38 and 378,090.21 is: 521,744.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,032.07 : 943,927.38 = 378,090.21 : x
  2. Step 2: Convert to fraction form
    684,032.07/943,927.38 = 378,090.21/x
  3. Step 3: Cross multiply
    684,032.07x = 943,927.38 × 378,090.21
  4. Step 4: Simplify right side
    684,032.07x = 356,889,701,328.95
  5. Step 5: Solve for x
    x = 356,889,701,328.95/684,032.07
  6. Step 6: Final answer
    x = 521,744.11

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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.