Home / 657,318.84-907,021.98-370,822.20

Finding the Fourth Proportional to 657,318.84, 907,021.98 and 370,822.20

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Solution

The fourth proportional to 657,318.84, 907,021.98 and 370,822.20 is: 511,690.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,318.84 : 907,021.98 = 370,822.20 : x
  2. Step 2: Convert to fraction form
    657,318.84/907,021.98 = 370,822.20/x
  3. Step 3: Cross multiply
    657,318.84x = 907,021.98 × 370,822.20
  4. Step 4: Simplify right side
    657,318.84x = 336,343,886,071.96
  5. Step 5: Solve for x
    x = 336,343,886,071.96/657,318.84
  6. Step 6: Final answer
    x = 511,690.62

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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.