Home / 642,985.17-963,874.29-216,222.59

Finding the Fourth Proportional to 642,985.17, 963,874.29 and 216,222.59

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Solution

The fourth proportional to 642,985.17, 963,874.29 and 216,222.59 is: 324,130.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,985.17 : 963,874.29 = 216,222.59 : x
  2. Step 2: Convert to fraction form
    642,985.17/963,874.29 = 216,222.59/x
  3. Step 3: Cross multiply
    642,985.17x = 963,874.29 × 216,222.59
  4. Step 4: Simplify right side
    642,985.17x = 208,411,390,598.84
  5. Step 5: Solve for x
    x = 208,411,390,598.84/642,985.17
  6. Step 6: Final answer
    x = 324,130.94

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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.