Home / 761,770.17-1,142,561.80-442,095.98

Finding the Fourth Proportional to 761,770.17, 1,142,561.80 and 442,095.98

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Solution

The fourth proportional to 761,770.17, 1,142,561.80 and 442,095.98 is: 663,089.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,770.17 : 1,142,561.80 = 442,095.98 : x
  2. Step 2: Convert to fraction form
    761,770.17/1,142,561.80 = 442,095.98/x
  3. Step 3: Cross multiply
    761,770.17x = 1,142,561.80 × 442,095.98
  4. Step 4: Simplify right side
    761,770.17x = 505,121,973,521.38
  5. Step 5: Solve for x
    x = 505,121,973,521.38/761,770.17
  6. Step 6: Final answer
    x = 663,089.73

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1.5x scale

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.