Home / 830,671.80-1,246,007.70-511,807.20

Finding the Fourth Proportional to 830,671.80, 1,246,007.70 and 511,807.20

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Solution

The fourth proportional to 830,671.80, 1,246,007.70 and 511,807.20 is: 767,710.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,671.80 : 1,246,007.70 = 511,807.20 : x
  2. Step 2: Convert to fraction form
    830,671.80/1,246,007.70 = 511,807.20/x
  3. Step 3: Cross multiply
    830,671.80x = 1,246,007.70 × 511,807.20
  4. Step 4: Simplify right side
    830,671.80x = 637,715,712,115.44
  5. Step 5: Solve for x
    x = 637,715,712,115.44/830,671.80
  6. Step 6: Final answer
    x = 767,710.80

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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.