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Finding the Fourth Proportional to 670,341.84, 925,088.20 and 368,536.40

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Solution

The fourth proportional to 670,341.84, 925,088.20 and 368,536.40 is: 508,589.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,341.84 : 925,088.20 = 368,536.40 : x
  2. Step 2: Convert to fraction form
    670,341.84/925,088.20 = 368,536.40/x
  3. Step 3: Cross multiply
    670,341.84x = 925,088.20 × 368,536.40
  4. Step 4: Simplify right side
    670,341.84x = 340,928,674,910.48
  5. Step 5: Solve for x
    x = 340,928,674,910.48/670,341.84
  6. Step 6: Final answer
    x = 508,589.28

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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.