Home / 742,533.90-1,113,800.85-369,285.90

Finding the Fourth Proportional to 742,533.90, 1,113,800.85 and 369,285.90

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Solution

The fourth proportional to 742,533.90, 1,113,800.85 and 369,285.90 is: 553,928.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,533.90 : 1,113,800.85 = 369,285.90 : x
  2. Step 2: Convert to fraction form
    742,533.90/1,113,800.85 = 369,285.90/x
  3. Step 3: Cross multiply
    742,533.90x = 1,113,800.85 × 369,285.90
  4. Step 4: Simplify right side
    742,533.90x = 411,310,949,313.02
  5. Step 5: Solve for x
    x = 411,310,949,313.02/742,533.90
  6. Step 6: Final answer
    x = 553,928.85

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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.