Home / 1,152,117.70-1,725,152.55-813,328.90

Finding the Fourth Proportional to 1,152,117.70, 1,725,152.55 and 813,328.90

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Solution

The fourth proportional to 1,152,117.70, 1,725,152.55 and 813,328.90 is: 1,217,858.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,152,117.70 : 1,725,152.55 = 813,328.90 : x
  2. Step 2: Convert to fraction form
    1,152,117.70/1,725,152.55 = 813,328.90/x
  3. Step 3: Cross multiply
    1,152,117.70x = 1,725,152.55 × 813,328.90
  4. Step 4: Simplify right side
    1,152,117.70x = 1,403,116,425,823.70
  5. Step 5: Solve for x
    x = 1,403,116,425,823.70/1,152,117.70
  6. Step 6: Final answer
    x = 1,217,858.58

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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.