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Finding the Fourth Proportional to 578,337.40, 798,130.54 and 320,214.33

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Solution

The fourth proportional to 578,337.40, 798,130.54 and 320,214.33 is: 441,909.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,337.40 : 798,130.54 = 320,214.33 : x
  2. Step 2: Convert to fraction form
    578,337.40/798,130.54 = 320,214.33/x
  3. Step 3: Cross multiply
    578,337.40x = 798,130.54 × 320,214.33
  4. Step 4: Simplify right side
    578,337.40x = 255,572,836,118.64
  5. Step 5: Solve for x
    x = 255,572,836,118.64/578,337.40
  6. Step 6: Final answer
    x = 441,909.58

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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.