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Finding the Fourth Proportional to 670,509.46, 924,003.75 and 555,954.40

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Solution

The fourth proportional to 670,509.46, 924,003.75 and 555,954.40 is: 766,139.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,509.46 : 924,003.75 = 555,954.40 : x
  2. Step 2: Convert to fraction form
    670,509.46/924,003.75 = 555,954.40/x
  3. Step 3: Cross multiply
    670,509.46x = 924,003.75 × 555,954.40
  4. Step 4: Simplify right side
    670,509.46x = 513,703,950,429
  5. Step 5: Solve for x
    x = 513,703,950,429/670,509.46
  6. Step 6: Final answer
    x = 766,139.75

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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.