Home / 761,653.12-1,051,559.28-490,192.72

Finding the Fourth Proportional to 761,653.12, 1,051,559.28 and 490,192.72

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Solution

The fourth proportional to 761,653.12, 1,051,559.28 and 490,192.72 is: 676,773.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,653.12 : 1,051,559.28 = 490,192.72 : x
  2. Step 2: Convert to fraction form
    761,653.12/1,051,559.28 = 490,192.72/x
  3. Step 3: Cross multiply
    761,653.12x = 1,051,559.28 × 490,192.72
  4. Step 4: Simplify right side
    761,653.12x = 515,466,703,704.44
  5. Step 5: Solve for x
    x = 515,466,703,704.44/761,653.12
  6. Step 6: Final answer
    x = 676,773.57

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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.