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Finding the Fourth Proportional to 626,833.49, 865,006.70 and 340,347.42

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Solution

The fourth proportional to 626,833.49, 865,006.70 and 340,347.42 is: 469,666.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,833.49 : 865,006.70 = 340,347.42 : x
  2. Step 2: Convert to fraction form
    626,833.49/865,006.70 = 340,347.42/x
  3. Step 3: Cross multiply
    626,833.49x = 865,006.70 × 340,347.42
  4. Step 4: Simplify right side
    626,833.49x = 294,402,796,925.98
  5. Step 5: Solve for x
    x = 294,402,796,925.98/626,833.49
  6. Step 6: Final answer
    x = 469,666.67

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1.5x scale

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.