Home / 742,535.90-1,113,803.85-698,990.30

Finding the Fourth Proportional to 742,535.90, 1,113,803.85 and 698,990.30

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Solution

The fourth proportional to 742,535.90, 1,113,803.85 and 698,990.30 is: 1,048,485.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,535.90 : 1,113,803.85 = 698,990.30 : x
  2. Step 2: Convert to fraction form
    742,535.90/1,113,803.85 = 698,990.30/x
  3. Step 3: Cross multiply
    742,535.90x = 1,113,803.85 × 698,990.30
  4. Step 4: Simplify right side
    742,535.90x = 778,538,087,252.66
  5. Step 5: Solve for x
    x = 778,538,087,252.66/742,535.90
  6. Step 6: Final answer
    x = 1,048,485.45

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Double scale
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Similar ratio
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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.