Home / 1,500,897.21-2,071,238.94-812,569.21

Finding the Fourth Proportional to 1,500,897.21, 2,071,238.94 and 812,569.21

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Solution

The fourth proportional to 1,500,897.21, 2,071,238.94 and 812,569.21 is: 1,121,345.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,500,897.21 : 2,071,238.94 = 812,569.21 : x
  2. Step 2: Convert to fraction form
    1,500,897.21/2,071,238.94 = 812,569.21/x
  3. Step 3: Cross multiply
    1,500,897.21x = 2,071,238.94 × 812,569.21
  4. Step 4: Simplify right side
    1,500,897.21x = 1,683,024,989,197.04
  5. Step 5: Solve for x
    x = 1,683,024,989,197.04/1,500,897.21
  6. Step 6: Final answer
    x = 1,121,345.94

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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.