Home / 830,070.60-1,246,272.30-515,142.60

Finding the Fourth Proportional to 830,070.60, 1,246,272.30 and 515,142.60

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Solution

The fourth proportional to 830,070.60, 1,246,272.30 and 515,142.60 is: 773,437.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,070.60 : 1,246,272.30 = 515,142.60 : x
  2. Step 2: Convert to fraction form
    830,070.60/1,246,272.30 = 515,142.60/x
  3. Step 3: Cross multiply
    830,070.60x = 1,246,272.30 × 515,142.60
  4. Step 4: Simplify right side
    830,070.60x = 642,007,952,929.98
  5. Step 5: Solve for x
    x = 642,007,952,929.98/830,070.60
  6. Step 6: Final answer
    x = 773,437.77

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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.