Home / 3,290,038.20-4,942,430.10-3,155,689.40

Finding the Fourth Proportional to 3,290,038.20, 4,942,430.10 and 3,155,689.40

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Solution

The fourth proportional to 3,290,038.20, 4,942,430.10 and 3,155,689.40 is: 4,740,605.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,290,038.20 : 4,942,430.10 = 3,155,689.40 : x
  2. Step 2: Convert to fraction form
    3,290,038.20/4,942,430.10 = 3,155,689.40/x
  3. Step 3: Cross multiply
    3,290,038.20x = 4,942,430.10 × 3,155,689.40
  4. Step 4: Simplify right side
    3,290,038.20x = 15,596,774,276,810.94
  5. Step 5: Solve for x
    x = 15,596,774,276,810.94/3,290,038.20
  6. Step 6: Final answer
    x = 4,740,605.83

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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.