Home / 884,378.62-1,220,485.76-497,315.85

Finding the Fourth Proportional to 884,378.62, 1,220,485.76 and 497,315.85

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Solution

The fourth proportional to 884,378.62, 1,220,485.76 and 497,315.85 is: 686,320.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    884,378.62 : 1,220,485.76 = 497,315.85 : x
  2. Step 2: Convert to fraction form
    884,378.62/1,220,485.76 = 497,315.85/x
  3. Step 3: Cross multiply
    884,378.62x = 1,220,485.76 × 497,315.85
  4. Step 4: Simplify right side
    884,378.62x = 606,966,913,147.30
  5. Step 5: Solve for x
    x = 606,966,913,147.30/884,378.62
  6. Step 6: Final answer
    x = 686,320.20

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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.