Home / 778,715.90-1,166,230.65-528,040.70

Finding the Fourth Proportional to 778,715.90, 1,166,230.65 and 528,040.70

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Solution

The fourth proportional to 778,715.90, 1,166,230.65 and 528,040.70 is: 790,811.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,715.90 : 1,166,230.65 = 528,040.70 : x
  2. Step 2: Convert to fraction form
    778,715.90/1,166,230.65 = 528,040.70/x
  3. Step 3: Cross multiply
    778,715.90x = 1,166,230.65 × 528,040.70
  4. Step 4: Simplify right side
    778,715.90x = 615,817,248,787.46
  5. Step 5: Solve for x
    x = 615,817,248,787.46/778,715.90
  6. Step 6: Final answer
    x = 790,811.19

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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.