Home / 1,528,384.52-2,109,175.24-840,126.91

Finding the Fourth Proportional to 1,528,384.52, 2,109,175.24 and 840,126.91

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Solution

The fourth proportional to 1,528,384.52, 2,109,175.24 and 840,126.91 is: 1,159,377.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,528,384.52 : 2,109,175.24 = 840,126.91 : x
  2. Step 2: Convert to fraction form
    1,528,384.52/2,109,175.24 = 840,126.91/x
  3. Step 3: Cross multiply
    1,528,384.52x = 2,109,175.24 × 840,126.91
  4. Step 4: Simplify right side
    1,528,384.52x = 1,771,974,877,029.71
  5. Step 5: Solve for x
    x = 1,771,974,877,029.71/1,528,384.52
  6. Step 6: Final answer
    x = 1,159,377.67

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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.