Home / 1,298,176.86-1,947,486.72-578,779.60

Finding the Fourth Proportional to 1,298,176.86, 1,947,486.72 and 578,779.60

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Solution

The fourth proportional to 1,298,176.86, 1,947,486.72 and 578,779.60 is: 868,268.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,176.86 : 1,947,486.72 = 578,779.60 : x
  2. Step 2: Convert to fraction form
    1,298,176.86/1,947,486.72 = 578,779.60/x
  3. Step 3: Cross multiply
    1,298,176.86x = 1,947,486.72 × 578,779.60
  4. Step 4: Simplify right side
    1,298,176.86x = 1,127,165,584,806.91
  5. Step 5: Solve for x
    x = 1,127,165,584,806.91/1,298,176.86
  6. Step 6: Final answer
    x = 868,268.12

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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.