Home / 849,904.30-1,274,856.45-288,938.80

Finding the Fourth Proportional to 849,904.30, 1,274,856.45 and 288,938.80

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Solution

The fourth proportional to 849,904.30, 1,274,856.45 and 288,938.80 is: 433,408.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    849,904.30 : 1,274,856.45 = 288,938.80 : x
  2. Step 2: Convert to fraction form
    849,904.30/1,274,856.45 = 288,938.80/x
  3. Step 3: Cross multiply
    849,904.30x = 1,274,856.45 × 288,938.80
  4. Step 4: Simplify right side
    849,904.30x = 368,355,492,835.26
  5. Step 5: Solve for x
    x = 368,355,492,835.26/849,904.30
  6. Step 6: Final answer
    x = 433,408.20

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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.