Home / 708,272.83-977,139.05-435,867.80

Finding the Fourth Proportional to 708,272.83, 977,139.05 and 435,867.80

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Solution

The fourth proportional to 708,272.83, 977,139.05 and 435,867.80 is: 601,326.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,272.83 : 977,139.05 = 435,867.80 : x
  2. Step 2: Convert to fraction form
    708,272.83/977,139.05 = 435,867.80/x
  3. Step 3: Cross multiply
    708,272.83x = 977,139.05 × 435,867.80
  4. Step 4: Simplify right side
    708,272.83x = 425,903,451,550.11
  5. Step 5: Solve for x
    x = 425,903,451,550.11/708,272.83
  6. Step 6: Final answer
    x = 601,326.83

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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.