Home / 1,298,511.80-1,946,442.90-877,830.20

Finding the Fourth Proportional to 1,298,511.80, 1,946,442.90 and 877,830.20

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Solution

The fourth proportional to 1,298,511.80, 1,946,442.90 and 877,830.20 is: 1,315,849.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,511.80 : 1,946,442.90 = 877,830.20 : x
  2. Step 2: Convert to fraction form
    1,298,511.80/1,946,442.90 = 877,830.20/x
  3. Step 3: Cross multiply
    1,298,511.80x = 1,946,442.90 × 877,830.20
  4. Step 4: Simplify right side
    1,298,511.80x = 1,708,646,360,195.58
  5. Step 5: Solve for x
    x = 1,708,646,360,195.58/1,298,511.80
  6. Step 6: Final answer
    x = 1,315,849.70

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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.