Home / 558,345.60-837,518.40-345,769.20

Finding the Fourth Proportional to 558,345.60, 837,518.40 and 345,769.20

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Solution

The fourth proportional to 558,345.60, 837,518.40 and 345,769.20 is: 518,653.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,345.60 : 837,518.40 = 345,769.20 : x
  2. Step 2: Convert to fraction form
    558,345.60/837,518.40 = 345,769.20/x
  3. Step 3: Cross multiply
    558,345.60x = 837,518.40 × 345,769.20
  4. Step 4: Simplify right side
    558,345.60x = 289,588,067,153.28
  5. Step 5: Solve for x
    x = 289,588,067,153.28/558,345.60
  6. Step 6: Final answer
    x = 518,653.80

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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.