Home / 873,890.70-1,311,345.45-368,420.70

Finding the Fourth Proportional to 873,890.70, 1,311,345.45 and 368,420.70

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Solution

The fourth proportional to 873,890.70, 1,311,345.45 and 368,420.70 is: 552,845.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,890.70 : 1,311,345.45 = 368,420.70 : x
  2. Step 2: Convert to fraction form
    873,890.70/1,311,345.45 = 368,420.70/x
  3. Step 3: Cross multiply
    873,890.70x = 1,311,345.45 × 368,420.70
  4. Step 4: Simplify right side
    873,890.70x = 483,126,808,630.82
  5. Step 5: Solve for x
    x = 483,126,808,630.82/873,890.70
  6. Step 6: Final answer
    x = 552,845.81

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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.