Home / 1,019,117.40-1,528,287.30-308,909.40

Finding the Fourth Proportional to 1,019,117.40, 1,528,287.30 and 308,909.40

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Solution

The fourth proportional to 1,019,117.40, 1,528,287.30 and 308,909.40 is: 463,246.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,019,117.40 : 1,528,287.30 = 308,909.40 : x
  2. Step 2: Convert to fraction form
    1,019,117.40/1,528,287.30 = 308,909.40/x
  3. Step 3: Cross multiply
    1,019,117.40x = 1,528,287.30 × 308,909.40
  4. Step 4: Simplify right side
    1,019,117.40x = 472,102,312,870.62
  5. Step 5: Solve for x
    x = 472,102,312,870.62/1,019,117.40
  6. Step 6: Final answer
    x = 463,246.25

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Double scale
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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.