Home / 1,420,476.40-2,130,714.59-521,529.18

Finding the Fourth Proportional to 1,420,476.40, 2,130,714.59 and 521,529.18

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Solution

The fourth proportional to 1,420,476.40, 2,130,714.59 and 521,529.18 is: 782,293.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,476.40 : 2,130,714.59 = 521,529.18 : x
  2. Step 2: Convert to fraction form
    1,420,476.40/2,130,714.59 = 521,529.18/x
  3. Step 3: Cross multiply
    1,420,476.40x = 2,130,714.59 × 521,529.18
  4. Step 4: Simplify right side
    1,420,476.40x = 1,111,229,832,936.74
  5. Step 5: Solve for x
    x = 1,111,229,832,936.74/1,420,476.40
  6. Step 6: Final answer
    x = 782,293.77

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Double scale
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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.