Home / 763,460.40-1,053,672.12-461,820.72

Finding the Fourth Proportional to 763,460.40, 1,053,672.12 and 461,820.72

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Solution

The fourth proportional to 763,460.40, 1,053,672.12 and 461,820.72 is: 637,371.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,460.40 : 1,053,672.12 = 461,820.72 : x
  2. Step 2: Convert to fraction form
    763,460.40/1,053,672.12 = 461,820.72/x
  3. Step 3: Cross multiply
    763,460.40x = 1,053,672.12 × 461,820.72
  4. Step 4: Simplify right side
    763,460.40x = 486,607,617,102.33
  5. Step 5: Solve for x
    x = 486,607,617,102.33/763,460.40
  6. Step 6: Final answer
    x = 637,371.13

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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.