Home / 761,898.60-1,143,007.74-288,573.48

Finding the Fourth Proportional to 761,898.60, 1,143,007.74 and 288,573.48

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Solution

The fourth proportional to 761,898.60, 1,143,007.74 and 288,573.48 is: 432,920.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,898.60 : 1,143,007.74 = 288,573.48 : x
  2. Step 2: Convert to fraction form
    761,898.60/1,143,007.74 = 288,573.48/x
  3. Step 3: Cross multiply
    761,898.60x = 1,143,007.74 × 288,573.48
  4. Step 4: Simplify right side
    761,898.60x = 329,841,721,198.74
  5. Step 5: Solve for x
    x = 329,841,721,198.74/761,898.60
  6. Step 6: Final answer
    x = 432,920.76

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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.