Home / 742,847.45-1,025,113.56-403,315.70

Finding the Fourth Proportional to 742,847.45, 1,025,113.56 and 403,315.70

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Solution

The fourth proportional to 742,847.45, 1,025,113.56 and 403,315.70 is: 556,567.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,847.45 : 1,025,113.56 = 403,315.70 : x
  2. Step 2: Convert to fraction form
    742,847.45/1,025,113.56 = 403,315.70/x
  3. Step 3: Cross multiply
    742,847.45x = 1,025,113.56 × 403,315.70
  4. Step 4: Simplify right side
    742,847.45x = 413,444,393,030.89
  5. Step 5: Solve for x
    x = 413,444,393,030.89/742,847.45
  6. Step 6: Final answer
    x = 556,567.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.