Home / 1,564,941.47-2,159,809.94-920,330.51

Finding the Fourth Proportional to 1,564,941.47, 2,159,809.94 and 920,330.51

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Solution

The fourth proportional to 1,564,941.47, 2,159,809.94 and 920,330.51 is: 1,270,168.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,564,941.47 : 2,159,809.94 = 920,330.51 : x
  2. Step 2: Convert to fraction form
    1,564,941.47/2,159,809.94 = 920,330.51/x
  3. Step 3: Cross multiply
    1,564,941.47x = 2,159,809.94 × 920,330.51
  4. Step 4: Simplify right side
    1,564,941.47x = 1,987,738,983,583.27
  5. Step 5: Solve for x
    x = 1,987,738,983,583.27/1,564,941.47
  6. Step 6: Final answer
    x = 1,270,168.26

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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.