Home / 1,121,913.58-1,681,870.02-411,776.86

Finding the Fourth Proportional to 1,121,913.58, 1,681,870.02 and 411,776.86

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Solution

The fourth proportional to 1,121,913.58, 1,681,870.02 and 411,776.86 is: 617,298.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,913.58 : 1,681,870.02 = 411,776.86 : x
  2. Step 2: Convert to fraction form
    1,121,913.58/1,681,870.02 = 411,776.86/x
  3. Step 3: Cross multiply
    1,121,913.58x = 1,681,870.02 × 411,776.86
  4. Step 4: Simplify right side
    1,121,913.58x = 692,555,155,763.74
  5. Step 5: Solve for x
    x = 692,555,155,763.74/1,121,913.58
  6. Step 6: Final answer
    x = 617,298.13

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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.