Home / 1,564,939.85-2,159,807.69-920,328.89

Finding the Fourth Proportional to 1,564,939.85, 2,159,807.69 and 920,328.89

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Solution

The fourth proportional to 1,564,939.85, 2,159,807.69 and 920,328.89 is: 1,270,166.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,564,939.85 : 2,159,807.69 = 920,328.89 : x
  2. Step 2: Convert to fraction form
    1,564,939.85/2,159,807.69 = 920,328.89/x
  3. Step 3: Cross multiply
    1,564,939.85x = 2,159,807.69 × 920,328.89
  4. Step 4: Simplify right side
    1,564,939.85x = 1,987,733,405,452.95
  5. Step 5: Solve for x
    x = 1,987,733,405,452.95/1,564,939.85
  6. Step 6: Final answer
    x = 1,270,166.01

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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.