Home / 790,621.29-1,186,153.34-317,638.80

Finding the Fourth Proportional to 790,621.29, 1,186,153.34 and 317,638.80

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Solution

The fourth proportional to 790,621.29, 1,186,153.34 and 317,638.80 is: 476,547.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,621.29 : 1,186,153.34 = 317,638.80 : x
  2. Step 2: Convert to fraction form
    790,621.29/1,186,153.34 = 317,638.80/x
  3. Step 3: Cross multiply
    790,621.29x = 1,186,153.34 × 317,638.80
  4. Step 4: Simplify right side
    790,621.29x = 376,768,321,945.40
  5. Step 5: Solve for x
    x = 376,768,321,945.40/790,621.29
  6. Step 6: Final answer
    x = 476,547.15

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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.