Home / 1,019,319.48-1,528,988.25-309,347.40

Finding the Fourth Proportional to 1,019,319.48, 1,528,988.25 and 309,347.40

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Solution

The fourth proportional to 1,019,319.48, 1,528,988.25 and 309,347.40 is: 464,023.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,019,319.48 : 1,528,988.25 = 309,347.40 : x
  2. Step 2: Convert to fraction form
    1,019,319.48/1,528,988.25 = 309,347.40/x
  3. Step 3: Cross multiply
    1,019,319.48x = 1,528,988.25 × 309,347.40
  4. Step 4: Simplify right side
    1,019,319.48x = 472,988,539,768.05
  5. Step 5: Solve for x
    x = 472,988,539,768.05/1,019,319.48
  6. Step 6: Final answer
    x = 464,023.84

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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.