Home / 905,495.60-1,249,576.62-492,028.76

Finding the Fourth Proportional to 905,495.60, 1,249,576.62 and 492,028.76

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Solution

The fourth proportional to 905,495.60, 1,249,576.62 and 492,028.76 is: 678,995.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,495.60 : 1,249,576.62 = 492,028.76 : x
  2. Step 2: Convert to fraction form
    905,495.60/1,249,576.62 = 492,028.76/x
  3. Step 3: Cross multiply
    905,495.60x = 1,249,576.62 × 492,028.76
  4. Step 4: Simplify right side
    905,495.60x = 614,827,634,863.59
  5. Step 5: Solve for x
    x = 614,827,634,863.59/905,495.60
  6. Step 6: Final answer
    x = 678,995.72

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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.