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Finding the Fourth Proportional to 604,701.84, 834,209.34 and 389,910.90

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Solution

The fourth proportional to 604,701.84, 834,209.34 and 389,910.90 is: 537,897.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,701.84 : 834,209.34 = 389,910.90 : x
  2. Step 2: Convert to fraction form
    604,701.84/834,209.34 = 389,910.90/x
  3. Step 3: Cross multiply
    604,701.84x = 834,209.34 × 389,910.90
  4. Step 4: Simplify right side
    604,701.84x = 325,267,314,547.81
  5. Step 5: Solve for x
    x = 325,267,314,547.81/604,701.84
  6. Step 6: Final answer
    x = 537,897.01

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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.