Home / 769,545.21-1,061,970.71-430,013.46

Finding the Fourth Proportional to 769,545.21, 1,061,970.71 and 430,013.46

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Solution

The fourth proportional to 769,545.21, 1,061,970.71 and 430,013.46 is: 593,417.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,545.21 : 1,061,970.71 = 430,013.46 : x
  2. Step 2: Convert to fraction form
    769,545.21/1,061,970.71 = 430,013.46/x
  3. Step 3: Cross multiply
    769,545.21x = 1,061,970.71 × 430,013.46
  4. Step 4: Simplify right side
    769,545.21x = 456,661,697,275.69
  5. Step 5: Solve for x
    x = 456,661,697,275.69/769,545.21
  6. Step 6: Final answer
    x = 593,417.63

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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.