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Finding the Fourth Proportional to 655,347.57, 904,162.80 and 383,222.67

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Solution

The fourth proportional to 655,347.57, 904,162.80 and 383,222.67 is: 528,720.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,347.57 : 904,162.80 = 383,222.67 : x
  2. Step 2: Convert to fraction form
    655,347.57/904,162.80 = 383,222.67/x
  3. Step 3: Cross multiply
    655,347.57x = 904,162.80 × 383,222.67
  4. Step 4: Simplify right side
    655,347.57x = 346,495,682,330.68
  5. Step 5: Solve for x
    x = 346,495,682,330.68/655,347.57
  6. Step 6: Final answer
    x = 528,720.48

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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.