Home / 862,945.04-1,293,400.88-389,075.60

Finding the Fourth Proportional to 862,945.04, 1,293,400.88 and 389,075.60

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Solution

The fourth proportional to 862,945.04, 1,293,400.88 and 389,075.60 is: 583,155.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,945.04 : 1,293,400.88 = 389,075.60 : x
  2. Step 2: Convert to fraction form
    862,945.04/1,293,400.88 = 389,075.60/x
  3. Step 3: Cross multiply
    862,945.04x = 1,293,400.88 × 389,075.60
  4. Step 4: Simplify right side
    862,945.04x = 503,230,723,426.53
  5. Step 5: Solve for x
    x = 503,230,723,426.53/862,945.04
  6. Step 6: Final answer
    x = 583,155.01

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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.