Home / 785,259.81-1,083,714.53-445,749.93

Finding the Fourth Proportional to 785,259.81, 1,083,714.53 and 445,749.93

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Solution

The fourth proportional to 785,259.81, 1,083,714.53 and 445,749.93 is: 615,166.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,259.81 : 1,083,714.53 = 445,749.93 : x
  2. Step 2: Convert to fraction form
    785,259.81/1,083,714.53 = 445,749.93/x
  3. Step 3: Cross multiply
    785,259.81x = 1,083,714.53 × 445,749.93
  4. Step 4: Simplify right side
    785,259.81x = 483,065,673,658.73
  5. Step 5: Solve for x
    x = 483,065,673,658.73/785,259.81
  6. Step 6: Final answer
    x = 615,166.68

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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.