Home / 783,210.40-1,174,815.60-742,775.20

Finding the Fourth Proportional to 783,210.40, 1,174,815.60 and 742,775.20

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Solution

The fourth proportional to 783,210.40, 1,174,815.60 and 742,775.20 is: 1,114,162.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,210.40 : 1,174,815.60 = 742,775.20 : x
  2. Step 2: Convert to fraction form
    783,210.40/1,174,815.60 = 742,775.20/x
  3. Step 3: Cross multiply
    783,210.40x = 1,174,815.60 × 742,775.20
  4. Step 4: Simplify right side
    783,210.40x = 872,623,892,253.12
  5. Step 5: Solve for x
    x = 872,623,892,253.12/783,210.40
  6. Step 6: Final answer
    x = 1,114,162.80

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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.