Home / 953,009.07-1,421,106.78-820,739.31

Finding the Fourth Proportional to 953,009.07, 1,421,106.78 and 820,739.31

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Solution

The fourth proportional to 953,009.07, 1,421,106.78 and 820,739.31 is: 1,223,868.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    953,009.07 : 1,421,106.78 = 820,739.31 : x
  2. Step 2: Convert to fraction form
    953,009.07/1,421,106.78 = 820,739.31/x
  3. Step 3: Cross multiply
    953,009.07x = 1,421,106.78 × 820,739.31
  4. Step 4: Simplify right side
    953,009.07x = 1,166,358,198,053.52
  5. Step 5: Solve for x
    x = 1,166,358,198,053.52/953,009.07
  6. Step 6: Final answer
    x = 1,223,868.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.