Home / 837,101.80-1,155,202.98-455,130.04

Finding the Fourth Proportional to 837,101.80, 1,155,202.98 and 455,130.04

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Solution

The fourth proportional to 837,101.80, 1,155,202.98 and 455,130.04 is: 628,080.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    837,101.80 : 1,155,202.98 = 455,130.04 : x
  2. Step 2: Convert to fraction form
    837,101.80/1,155,202.98 = 455,130.04/x
  3. Step 3: Cross multiply
    837,101.80x = 1,155,202.98 × 455,130.04
  4. Step 4: Simplify right side
    837,101.80x = 525,767,578,495.52
  5. Step 5: Solve for x
    x = 525,767,578,495.52/837,101.80
  6. Step 6: Final answer
    x = 628,080.81

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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.