Home / 907,712.10-1,364,520.60-643,303.80

Finding the Fourth Proportional to 907,712.10, 1,364,520.60 and 643,303.80

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Solution

The fourth proportional to 907,712.10, 1,364,520.60 and 643,303.80 is: 967,048.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,712.10 : 1,364,520.60 = 643,303.80 : x
  2. Step 2: Convert to fraction form
    907,712.10/1,364,520.60 = 643,303.80/x
  3. Step 3: Cross multiply
    907,712.10x = 1,364,520.60 × 643,303.80
  4. Step 4: Simplify right side
    907,712.10x = 877,801,287,158.28
  5. Step 5: Solve for x
    x = 877,801,287,158.28/907,712.10
  6. Step 6: Final answer
    x = 967,048.13

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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.