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Finding the Fourth Proportional to 674,543.09, 930,881.70 and 368,632.42

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Solution

The fourth proportional to 674,543.09, 930,881.70 and 368,632.42 is: 508,719.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,543.09 : 930,881.70 = 368,632.42 : x
  2. Step 2: Convert to fraction form
    674,543.09/930,881.70 = 368,632.42/x
  3. Step 3: Cross multiply
    674,543.09x = 930,881.70 × 368,632.42
  4. Step 4: Simplify right side
    674,543.09x = 343,153,171,477.51
  5. Step 5: Solve for x
    x = 343,153,171,477.51/674,543.09
  6. Step 6: Final answer
    x = 508,719.42

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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.