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Finding the Fourth Proportional to 761,604.75, 1,051,026.08 and 417,437.91

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Solution

The fourth proportional to 761,604.75, 1,051,026.08 and 417,437.91 is: 576,070.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,604.75 : 1,051,026.08 = 417,437.91 : x
  2. Step 2: Convert to fraction form
    761,604.75/1,051,026.08 = 417,437.91/x
  3. Step 3: Cross multiply
    761,604.75x = 1,051,026.08 × 417,437.91
  4. Step 4: Simplify right side
    761,604.75x = 438,738,128,103.50
  5. Step 5: Solve for x
    x = 438,738,128,103.50/761,604.75
  6. Step 6: Final answer
    x = 576,070.63

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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.