Home / 783,421.10-1,175,520.45-446,720.30

Finding the Fourth Proportional to 783,421.10, 1,175,520.45 and 446,720.30

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Solution

The fourth proportional to 783,421.10, 1,175,520.45 and 446,720.30 is: 670,302.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,421.10 : 1,175,520.45 = 446,720.30 : x
  2. Step 2: Convert to fraction form
    783,421.10/1,175,520.45 = 446,720.30/x
  3. Step 3: Cross multiply
    783,421.10x = 1,175,520.45 × 446,720.30
  4. Step 4: Simplify right side
    783,421.10x = 525,128,848,080.14
  5. Step 5: Solve for x
    x = 525,128,848,080.14/783,421.10
  6. Step 6: Final answer
    x = 670,302.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.