Home / 1,018,441.34-1,405,426.43-553,283.17

Finding the Fourth Proportional to 1,018,441.34, 1,405,426.43 and 553,283.17

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Solution

The fourth proportional to 1,018,441.34, 1,405,426.43 and 553,283.17 is: 763,518.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,018,441.34 : 1,405,426.43 = 553,283.17 : x
  2. Step 2: Convert to fraction form
    1,018,441.34/1,405,426.43 = 553,283.17/x
  3. Step 3: Cross multiply
    1,018,441.34x = 1,405,426.43 × 553,283.17
  4. Step 4: Simplify right side
    1,018,441.34x = 777,598,790,392.18
  5. Step 5: Solve for x
    x = 777,598,790,392.18/1,018,441.34
  6. Step 6: Final answer
    x = 763,518.49

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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.