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Finding the Fourth Proportional to 628,608.90, 942,913.35 and 572,512.35

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Solution

The fourth proportional to 628,608.90, 942,913.35 and 572,512.35 is: 858,768.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,608.90 : 942,913.35 = 572,512.35 : x
  2. Step 2: Convert to fraction form
    628,608.90/942,913.35 = 572,512.35/x
  3. Step 3: Cross multiply
    628,608.90x = 942,913.35 × 572,512.35
  4. Step 4: Simplify right side
    628,608.90x = 539,829,537,854.87
  5. Step 5: Solve for x
    x = 539,829,537,854.87/628,608.90
  6. Step 6: Final answer
    x = 858,768.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.