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Finding the Fourth Proportional to 558,477.60, 837,716.40 and 345,901.20

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Solution

The fourth proportional to 558,477.60, 837,716.40 and 345,901.20 is: 518,851.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,477.60 : 837,716.40 = 345,901.20 : x
  2. Step 2: Convert to fraction form
    558,477.60/837,716.40 = 345,901.20/x
  3. Step 3: Cross multiply
    558,477.60x = 837,716.40 × 345,901.20
  4. Step 4: Simplify right side
    558,477.60x = 289,767,108,019.68
  5. Step 5: Solve for x
    x = 289,767,108,019.68/558,477.60
  6. Step 6: Final answer
    x = 518,851.80

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Similar ratio
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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.