Home / 763,621.40-1,053,799.99-424,089.65

Finding the Fourth Proportional to 763,621.40, 1,053,799.99 and 424,089.65

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Solution

The fourth proportional to 763,621.40, 1,053,799.99 and 424,089.65 is: 585,245.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,621.40 : 1,053,799.99 = 424,089.65 : x
  2. Step 2: Convert to fraction form
    763,621.40/1,053,799.99 = 424,089.65/x
  3. Step 3: Cross multiply
    763,621.40x = 1,053,799.99 × 424,089.65
  4. Step 4: Simplify right side
    763,621.40x = 446,905,662,599.88
  5. Step 5: Solve for x
    x = 446,905,662,599.88/763,621.40
  6. Step 6: Final answer
    x = 585,245.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.