Home / 2,688,538.60-4,032,807.90-1,005,423.40

Finding the Fourth Proportional to 2,688,538.60, 4,032,807.90 and 1,005,423.40

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Solution

The fourth proportional to 2,688,538.60, 4,032,807.90 and 1,005,423.40 is: 1,508,135.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,688,538.60 : 4,032,807.90 = 1,005,423.40 : x
  2. Step 2: Convert to fraction form
    2,688,538.60/4,032,807.90 = 1,005,423.40/x
  3. Step 3: Cross multiply
    2,688,538.60x = 4,032,807.90 × 1,005,423.40
  4. Step 4: Simplify right side
    2,688,538.60x = 4,054,679,430,364.86
  5. Step 5: Solve for x
    x = 4,054,679,430,364.86/2,688,538.60
  6. Step 6: Final answer
    x = 1,508,135.10

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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.