Home / 1,213,407.60-1,820,111.40-977,211.60

Finding the Fourth Proportional to 1,213,407.60, 1,820,111.40 and 977,211.60

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Solution

The fourth proportional to 1,213,407.60, 1,820,111.40 and 977,211.60 is: 1,465,817.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,407.60 : 1,820,111.40 = 977,211.60 : x
  2. Step 2: Convert to fraction form
    1,213,407.60/1,820,111.40 = 977,211.60/x
  3. Step 3: Cross multiply
    1,213,407.60x = 1,820,111.40 × 977,211.60
  4. Step 4: Simplify right side
    1,213,407.60x = 1,778,633,973,372.24
  5. Step 5: Solve for x
    x = 1,778,633,973,372.24/1,213,407.60
  6. Step 6: Final answer
    x = 1,465,817.40

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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.