Home / 1,424,000.70-2,136,001.05-426,599.10

Finding the Fourth Proportional to 1,424,000.70, 2,136,001.05 and 426,599.10

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Solution

The fourth proportional to 1,424,000.70, 2,136,001.05 and 426,599.10 is: 639,898.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,424,000.70 : 2,136,001.05 = 426,599.10 : x
  2. Step 2: Convert to fraction form
    1,424,000.70/2,136,001.05 = 426,599.10/x
  3. Step 3: Cross multiply
    1,424,000.70x = 2,136,001.05 × 426,599.10
  4. Step 4: Simplify right side
    1,424,000.70x = 911,216,125,529.06
  5. Step 5: Solve for x
    x = 911,216,125,529.06/1,424,000.70
  6. Step 6: Final answer
    x = 639,898.65

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Similar ratio
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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.