Home / 1,495,386.40-2,239,920.60-990,189.40

Finding the Fourth Proportional to 1,495,386.40, 2,239,920.60 and 990,189.40

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Solution

The fourth proportional to 1,495,386.40, 2,239,920.60 and 990,189.40 is: 1,483,192.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,495,386.40 : 2,239,920.60 = 990,189.40 : x
  2. Step 2: Convert to fraction form
    1,495,386.40/2,239,920.60 = 990,189.40/x
  3. Step 3: Cross multiply
    1,495,386.40x = 2,239,920.60 × 990,189.40
  4. Step 4: Simplify right side
    1,495,386.40x = 2,217,945,634,961.64
  5. Step 5: Solve for x
    x = 2,217,945,634,961.64/1,495,386.40
  6. Step 6: Final answer
    x = 1,483,192.33

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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.