Home / 1,215,887.43-1,678,011.53-672,011.52

Finding the Fourth Proportional to 1,215,887.43, 1,678,011.53 and 672,011.52

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Solution

The fourth proportional to 1,215,887.43, 1,678,011.53 and 672,011.52 is: 927,423.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,887.43 : 1,678,011.53 = 672,011.52 : x
  2. Step 2: Convert to fraction form
    1,215,887.43/1,678,011.53 = 672,011.52/x
  3. Step 3: Cross multiply
    1,215,887.43x = 1,678,011.53 × 672,011.52
  4. Step 4: Simplify right side
    1,215,887.43x = 1,127,643,075,492.77
  5. Step 5: Solve for x
    x = 1,127,643,075,492.77/1,215,887.43
  6. Step 6: Final answer
    x = 927,423.91

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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.