Home / 990,492.03-1,486,328.27-359,455.05

Finding the Fourth Proportional to 990,492.03, 1,486,328.27 and 359,455.05

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Solution

The fourth proportional to 990,492.03, 1,486,328.27 and 359,455.05 is: 539,396.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,492.03 : 1,486,328.27 = 359,455.05 : x
  2. Step 2: Convert to fraction form
    990,492.03/1,486,328.27 = 359,455.05/x
  3. Step 3: Cross multiply
    990,492.03x = 1,486,328.27 × 359,455.05
  4. Step 4: Simplify right side
    990,492.03x = 534,268,200,811.99
  5. Step 5: Solve for x
    x = 534,268,200,811.99/990,492.03
  6. Step 6: Final answer
    x = 539,396.77

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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.