Home / 4,905,986.80-7,358,980.20-1,312,308.40

Finding the Fourth Proportional to 4,905,986.80, 7,358,980.20 and 1,312,308.40

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Solution

The fourth proportional to 4,905,986.80, 7,358,980.20 and 1,312,308.40 is: 1,968,462.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,905,986.80 : 7,358,980.20 = 1,312,308.40 : x
  2. Step 2: Convert to fraction form
    4,905,986.80/7,358,980.20 = 1,312,308.40/x
  3. Step 3: Cross multiply
    4,905,986.80x = 7,358,980.20 × 1,312,308.40
  4. Step 4: Simplify right side
    4,905,986.80x = 9,657,251,531,893.68
  5. Step 5: Solve for x
    x = 9,657,251,531,893.68/4,905,986.80
  6. Step 6: Final answer
    x = 1,968,462.60

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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.