Home / 855,429.03-1,180,411.47-511,196.40

Finding the Fourth Proportional to 855,429.03, 1,180,411.47 and 511,196.40

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Solution

The fourth proportional to 855,429.03, 1,180,411.47 and 511,196.40 is: 705,402.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,429.03 : 1,180,411.47 = 511,196.40 : x
  2. Step 2: Convert to fraction form
    855,429.03/1,180,411.47 = 511,196.40/x
  3. Step 3: Cross multiply
    855,429.03x = 1,180,411.47 × 511,196.40
  4. Step 4: Simplify right side
    855,429.03x = 603,422,093,982.71
  5. Step 5: Solve for x
    x = 603,422,093,982.71/855,429.03
  6. Step 6: Final answer
    x = 705,402.87

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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.