Home / 779,709.52-1,075,939.08-440,211.28

Finding the Fourth Proportional to 779,709.52, 1,075,939.08 and 440,211.28

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Solution

The fourth proportional to 779,709.52, 1,075,939.08 and 440,211.28 is: 607,457.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,709.52 : 1,075,939.08 = 440,211.28 : x
  2. Step 2: Convert to fraction form
    779,709.52/1,075,939.08 = 440,211.28/x
  3. Step 3: Cross multiply
    779,709.52x = 1,075,939.08 × 440,211.28
  4. Step 4: Simplify right side
    779,709.52x = 473,640,519,608.82
  5. Step 5: Solve for x
    x = 473,640,519,608.82/779,709.52
  6. Step 6: Final answer
    x = 607,457.66

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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.