Home / 919,063.26-1,378,594.08-288,026.28

Finding the Fourth Proportional to 919,063.26, 1,378,594.08 and 288,026.28

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Solution

The fourth proportional to 919,063.26, 1,378,594.08 and 288,026.28 is: 432,039.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,063.26 : 1,378,594.08 = 288,026.28 : x
  2. Step 2: Convert to fraction form
    919,063.26/1,378,594.08 = 288,026.28/x
  3. Step 3: Cross multiply
    919,063.26x = 1,378,594.08 × 288,026.28
  4. Step 4: Simplify right side
    919,063.26x = 397,071,324,492.42
  5. Step 5: Solve for x
    x = 397,071,324,492.42/919,063.26
  6. Step 6: Final answer
    x = 432,039.17

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.