Home / 1,292,490-1,783,677.24-808,900.56

Finding the Fourth Proportional to 1,292,490, 1,783,677.24 and 808,900.56

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Solution

The fourth proportional to 1,292,490, 1,783,677.24 and 808,900.56 is: 1,116,308.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,490 : 1,783,677.24 = 808,900.56 : x
  2. Step 2: Convert to fraction form
    1,292,490/1,783,677.24 = 808,900.56/x
  3. Step 3: Cross multiply
    1,292,490x = 1,783,677.24 × 808,900.56
  4. Step 4: Simplify right side
    1,292,490x = 1,442,817,518,295.25
  5. Step 5: Solve for x
    x = 1,442,817,518,295.25/1,292,490
  6. Step 6: Final answer
    x = 1,116,308.46

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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.