Home / 1,105,123.51-1,657,685.34-306,405.07

Finding the Fourth Proportional to 1,105,123.51, 1,657,685.34 and 306,405.07

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Solution

The fourth proportional to 1,105,123.51, 1,657,685.34 and 306,405.07 is: 459,607.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,105,123.51 : 1,657,685.34 = 306,405.07 : x
  2. Step 2: Convert to fraction form
    1,105,123.51/1,657,685.34 = 306,405.07/x
  3. Step 3: Cross multiply
    1,105,123.51x = 1,657,685.34 × 306,405.07
  4. Step 4: Simplify right side
    1,105,123.51x = 507,923,192,640.67
  5. Step 5: Solve for x
    x = 507,923,192,640.67/1,105,123.51
  6. Step 6: Final answer
    x = 459,607.63

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Double scale
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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.