Home / 771,937.23-1,065,332.48-485,702.67

Finding the Fourth Proportional to 771,937.23, 1,065,332.48 and 485,702.67

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Solution

The fourth proportional to 771,937.23, 1,065,332.48 and 485,702.67 is: 670,306.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,937.23 : 1,065,332.48 = 485,702.67 : x
  2. Step 2: Convert to fraction form
    771,937.23/1,065,332.48 = 485,702.67/x
  3. Step 3: Cross multiply
    771,937.23x = 1,065,332.48 × 485,702.67
  4. Step 4: Simplify right side
    771,937.23x = 517,434,827,545.21
  5. Step 5: Solve for x
    x = 517,434,827,545.21/771,937.23
  6. Step 6: Final answer
    x = 670,306.87

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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.