Home / 990,090.32-1,366,325.88-537,381.44

Finding the Fourth Proportional to 990,090.32, 1,366,325.88 and 537,381.44

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Solution

The fourth proportional to 990,090.32, 1,366,325.88 and 537,381.44 is: 741,587.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,090.32 : 1,366,325.88 = 537,381.44 : x
  2. Step 2: Convert to fraction form
    990,090.32/1,366,325.88 = 537,381.44/x
  3. Step 3: Cross multiply
    990,090.32x = 1,366,325.88 × 537,381.44
  4. Step 4: Simplify right side
    990,090.32x = 734,238,168,903.67
  5. Step 5: Solve for x
    x = 734,238,168,903.67/990,090.32
  6. Step 6: Final answer
    x = 741,587.06

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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.