Home / 874,686.09-1,312,104.32-243,599.91

Finding the Fourth Proportional to 874,686.09, 1,312,104.32 and 243,599.91

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Solution

The fourth proportional to 874,686.09, 1,312,104.32 and 243,599.91 is: 365,420.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,686.09 : 1,312,104.32 = 243,599.91 : x
  2. Step 2: Convert to fraction form
    874,686.09/1,312,104.32 = 243,599.91/x
  3. Step 3: Cross multiply
    874,686.09x = 1,312,104.32 × 243,599.91
  4. Step 4: Simplify right side
    874,686.09x = 319,628,489,037.72
  5. Step 5: Solve for x
    x = 319,628,489,037.72/874,686.09
  6. Step 6: Final answer
    x = 365,420.80

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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.