Home / 761,602.05-1,051,126.52-486,078.75

Finding the Fourth Proportional to 761,602.05, 1,051,126.52 and 486,078.75

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Solution

The fourth proportional to 761,602.05, 1,051,126.52 and 486,078.75 is: 670,862.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,602.05 : 1,051,126.52 = 486,078.75 : x
  2. Step 2: Convert to fraction form
    761,602.05/1,051,126.52 = 486,078.75/x
  3. Step 3: Cross multiply
    761,602.05x = 1,051,126.52 × 486,078.75
  4. Step 4: Simplify right side
    761,602.05x = 510,930,262,503.06
  5. Step 5: Solve for x
    x = 510,930,262,503.06/761,602.05
  6. Step 6: Final answer
    x = 670,862.51

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Double scale
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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.