Home / 673,511.28-1,009,730.50-388,878.98

Finding the Fourth Proportional to 673,511.28, 1,009,730.50 and 388,878.98

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Solution

The fourth proportional to 673,511.28, 1,009,730.50 and 388,878.98 is: 583,008.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,511.28 : 1,009,730.50 = 388,878.98 : x
  2. Step 2: Convert to fraction form
    673,511.28/1,009,730.50 = 388,878.98/x
  3. Step 3: Cross multiply
    673,511.28x = 1,009,730.50 × 388,878.98
  4. Step 4: Simplify right side
    673,511.28x = 392,662,966,914.89
  5. Step 5: Solve for x
    x = 392,662,966,914.89/673,511.28
  6. Step 6: Final answer
    x = 583,008.75

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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.