Home / 785,429.70-1,083,898.17-445,903.62

Finding the Fourth Proportional to 785,429.70, 1,083,898.17 and 445,903.62

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Solution

The fourth proportional to 785,429.70, 1,083,898.17 and 445,903.62 is: 615,349.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,429.70 : 1,083,898.17 = 445,903.62 : x
  2. Step 2: Convert to fraction form
    785,429.70/1,083,898.17 = 445,903.62/x
  3. Step 3: Cross multiply
    785,429.70x = 1,083,898.17 × 445,903.62
  4. Step 4: Simplify right side
    785,429.70x = 483,314,117,714.38
  5. Step 5: Solve for x
    x = 483,314,117,714.38/785,429.70
  6. Step 6: Final answer
    x = 615,349.94

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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.