Home / 742,307.70-1,113,461.55-322,403.70

Finding the Fourth Proportional to 742,307.70, 1,113,461.55 and 322,403.70

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Solution

The fourth proportional to 742,307.70, 1,113,461.55 and 322,403.70 is: 483,605.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,307.70 : 1,113,461.55 = 322,403.70 : x
  2. Step 2: Convert to fraction form
    742,307.70/1,113,461.55 = 322,403.70/x
  3. Step 3: Cross multiply
    742,307.70x = 1,113,461.55 × 322,403.70
  4. Step 4: Simplify right side
    742,307.70x = 358,984,123,527.74
  5. Step 5: Solve for x
    x = 358,984,123,527.74/742,307.70
  6. Step 6: Final answer
    x = 483,605.55

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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.