Home / 1,039,698.60-1,559,547.90-639,040.20

Finding the Fourth Proportional to 1,039,698.60, 1,559,547.90 and 639,040.20

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Solution

The fourth proportional to 1,039,698.60, 1,559,547.90 and 639,040.20 is: 958,560.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,039,698.60 : 1,559,547.90 = 639,040.20 : x
  2. Step 2: Convert to fraction form
    1,039,698.60/1,559,547.90 = 639,040.20/x
  3. Step 3: Cross multiply
    1,039,698.60x = 1,559,547.90 × 639,040.20
  4. Step 4: Simplify right side
    1,039,698.60x = 996,613,801,925.58
  5. Step 5: Solve for x
    x = 996,613,801,925.58/1,039,698.60
  6. Step 6: Final answer
    x = 958,560.30

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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.