Home / 874,264.84-1,206,547.22-487,105.70

Finding the Fourth Proportional to 874,264.84, 1,206,547.22 and 487,105.70

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Solution

The fourth proportional to 874,264.84, 1,206,547.22 and 487,105.70 is: 672,240.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,264.84 : 1,206,547.22 = 487,105.70 : x
  2. Step 2: Convert to fraction form
    874,264.84/1,206,547.22 = 487,105.70/x
  3. Step 3: Cross multiply
    874,264.84x = 1,206,547.22 × 487,105.70
  4. Step 4: Simplify right side
    874,264.84x = 587,716,023,366.18
  5. Step 5: Solve for x
    x = 587,716,023,366.18/874,264.84
  6. Step 6: Final answer
    x = 672,240.26

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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.