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Finding the Fourth Proportional to 578,897.42, 798,878.43 and 352,542.92

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Solution

The fourth proportional to 578,897.42, 798,878.43 and 352,542.92 is: 486,509.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,897.42 : 798,878.43 = 352,542.92 : x
  2. Step 2: Convert to fraction form
    578,897.42/798,878.43 = 352,542.92/x
  3. Step 3: Cross multiply
    578,897.42x = 798,878.43 × 352,542.92
  4. Step 4: Simplify right side
    578,897.42x = 281,638,934,437.22
  5. Step 5: Solve for x
    x = 281,638,934,437.22/578,897.42
  6. Step 6: Final answer
    x = 486,509.22

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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.