Home / 782,583.40-1,078,030.50-667,487.08

Finding the Fourth Proportional to 782,583.40, 1,078,030.50 and 667,487.08

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Solution

The fourth proportional to 782,583.40, 1,078,030.50 and 667,487.08 is: 919,482.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,583.40 : 1,078,030.50 = 667,487.08 : x
  2. Step 2: Convert to fraction form
    782,583.40/1,078,030.50 = 667,487.08/x
  3. Step 3: Cross multiply
    782,583.40x = 1,078,030.50 × 667,487.08
  4. Step 4: Simplify right side
    782,583.40x = 719,571,430,595.94
  5. Step 5: Solve for x
    x = 719,571,430,595.94/782,583.40
  6. Step 6: Final answer
    x = 919,482.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.