Home / 1,421,130.56-1,961,136.50-776,535.93

Finding the Fourth Proportional to 1,421,130.56, 1,961,136.50 and 776,535.93

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Solution

The fourth proportional to 1,421,130.56, 1,961,136.50 and 776,535.93 is: 1,071,606.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,130.56 : 1,961,136.50 = 776,535.93 : x
  2. Step 2: Convert to fraction form
    1,421,130.56/1,961,136.50 = 776,535.93/x
  3. Step 3: Cross multiply
    1,421,130.56x = 1,961,136.50 × 776,535.93
  4. Step 4: Simplify right side
    1,421,130.56x = 1,522,892,952,001.77
  5. Step 5: Solve for x
    x = 1,522,892,952,001.77/1,421,130.56
  6. Step 6: Final answer
    x = 1,071,606.65

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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.