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Finding the Fourth Proportional to 626,510.89, 864,585.87 and 340,030.98

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Solution

The fourth proportional to 626,510.89, 864,585.87 and 340,030.98 is: 469,243.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,510.89 : 864,585.87 = 340,030.98 : x
  2. Step 2: Convert to fraction form
    626,510.89/864,585.87 = 340,030.98/x
  3. Step 3: Cross multiply
    626,510.89x = 864,585.87 × 340,030.98
  4. Step 4: Simplify right side
    626,510.89x = 293,985,980,670.25
  5. Step 5: Solve for x
    x = 293,985,980,670.25/626,510.89
  6. Step 6: Final answer
    x = 469,243.21

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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.