Home / 858,403.72-1,184,322.90-495,779.68

Finding the Fourth Proportional to 858,403.72, 1,184,322.90 and 495,779.68

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Solution

The fourth proportional to 858,403.72, 1,184,322.90 and 495,779.68 is: 684,017.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,403.72 : 1,184,322.90 = 495,779.68 : x
  2. Step 2: Convert to fraction form
    858,403.72/1,184,322.90 = 495,779.68/x
  3. Step 3: Cross multiply
    858,403.72x = 1,184,322.90 × 495,779.68
  4. Step 4: Simplify right side
    858,403.72x = 587,163,228,378.67
  5. Step 5: Solve for x
    x = 587,163,228,378.67/858,403.72
  6. Step 6: Final answer
    x = 684,017.57

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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.