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Finding the Fourth Proportional to 847,804.80, 1,273,780.80 and 637,852.80

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Solution

The fourth proportional to 847,804.80, 1,273,780.80 and 637,852.80 is: 958,339.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,804.80 : 1,273,780.80 = 637,852.80 : x
  2. Step 2: Convert to fraction form
    847,804.80/1,273,780.80 = 637,852.80/x
  3. Step 3: Cross multiply
    847,804.80x = 1,273,780.80 × 637,852.80
  4. Step 4: Simplify right side
    847,804.80x = 812,484,649,866.24
  5. Step 5: Solve for x
    x = 812,484,649,866.24/847,804.80
  6. Step 6: Final answer
    x = 958,339.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.