Home / 779,676.17-1,075,962.08-457,391.75

Finding the Fourth Proportional to 779,676.17, 1,075,962.08 and 457,391.75

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Solution

The fourth proportional to 779,676.17, 1,075,962.08 and 457,391.75 is: 631,205.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,676.17 : 1,075,962.08 = 457,391.75 : x
  2. Step 2: Convert to fraction form
    779,676.17/1,075,962.08 = 457,391.75/x
  3. Step 3: Cross multiply
    779,676.17x = 1,075,962.08 × 457,391.75
  4. Step 4: Simplify right side
    779,676.17x = 492,136,178,704.84
  5. Step 5: Solve for x
    x = 492,136,178,704.84/779,676.17
  6. Step 6: Final answer
    x = 631,205.87

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1.5x scale

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.