Home / 1,218,085.40-1,827,128.10-376,722.20

Finding the Fourth Proportional to 1,218,085.40, 1,827,128.10 and 376,722.20

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Solution

The fourth proportional to 1,218,085.40, 1,827,128.10 and 376,722.20 is: 565,083.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,085.40 : 1,827,128.10 = 376,722.20 : x
  2. Step 2: Convert to fraction form
    1,218,085.40/1,827,128.10 = 376,722.20/x
  3. Step 3: Cross multiply
    1,218,085.40x = 1,827,128.10 × 376,722.20
  4. Step 4: Simplify right side
    1,218,085.40x = 688,319,717,513.82
  5. Step 5: Solve for x
    x = 688,319,717,513.82/1,218,085.40
  6. Step 6: Final answer
    x = 565,083.30

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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.