Home / 642,126.93-886,031.03-384,110.49

Finding the Fourth Proportional to 642,126.93, 886,031.03 and 384,110.49

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Solution

The fourth proportional to 642,126.93, 886,031.03 and 384,110.49 is: 530,010.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,126.93 : 886,031.03 = 384,110.49 : x
  2. Step 2: Convert to fraction form
    642,126.93/886,031.03 = 384,110.49/x
  3. Step 3: Cross multiply
    642,126.93x = 886,031.03 × 384,110.49
  4. Step 4: Simplify right side
    642,126.93x = 340,333,813,088.51
  5. Step 5: Solve for x
    x = 340,333,813,088.51/642,126.93
  6. Step 6: Final answer
    x = 530,010.19

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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.