Home / 646,709.27-892,400.90-360,223.20

Finding the Fourth Proportional to 646,709.27, 892,400.90 and 360,223.20

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Solution

The fourth proportional to 646,709.27, 892,400.90 and 360,223.20 is: 497,075.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,709.27 : 892,400.90 = 360,223.20 : x
  2. Step 2: Convert to fraction form
    646,709.27/892,400.90 = 360,223.20/x
  3. Step 3: Cross multiply
    646,709.27x = 892,400.90 × 360,223.20
  4. Step 4: Simplify right side
    646,709.27x = 321,463,506,079.76
  5. Step 5: Solve for x
    x = 321,463,506,079.76/646,709.27
  6. Step 6: Final answer
    x = 497,075.77

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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.