Home / 807,923.40-1,210,502.70-512,089.80

Finding the Fourth Proportional to 807,923.40, 1,210,502.70 and 512,089.80

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Solution

The fourth proportional to 807,923.40, 1,210,502.70 and 512,089.80 is: 767,258.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,923.40 : 1,210,502.70 = 512,089.80 : x
  2. Step 2: Convert to fraction form
    807,923.40/1,210,502.70 = 512,089.80/x
  3. Step 3: Cross multiply
    807,923.40x = 1,210,502.70 × 512,089.80
  4. Step 4: Simplify right side
    807,923.40x = 619,886,085,542.46
  5. Step 5: Solve for x
    x = 619,886,085,542.46/807,923.40
  6. Step 6: Final answer
    x = 767,258.49

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1.5x scale

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.