Home / 1,210,681.40-1,815,391.51-451,898.91

Finding the Fourth Proportional to 1,210,681.40, 1,815,391.51 and 451,898.91

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Solution

The fourth proportional to 1,210,681.40, 1,815,391.51 and 451,898.91 is: 677,612.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,681.40 : 1,815,391.51 = 451,898.91 : x
  2. Step 2: Convert to fraction form
    1,210,681.40/1,815,391.51 = 451,898.91/x
  3. Step 3: Cross multiply
    1,210,681.40x = 1,815,391.51 × 451,898.91
  4. Step 4: Simplify right side
    1,210,681.40x = 820,373,443,462.51
  5. Step 5: Solve for x
    x = 820,373,443,462.51/1,210,681.40
  6. Step 6: Final answer
    x = 677,612.99

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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.