Home / 742,290.35-1,024,372.59-402,758.60

Finding the Fourth Proportional to 742,290.35, 1,024,372.59 and 402,758.60

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Solution

The fourth proportional to 742,290.35, 1,024,372.59 and 402,758.60 is: 555,813.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,290.35 : 1,024,372.59 = 402,758.60 : x
  2. Step 2: Convert to fraction form
    742,290.35/1,024,372.59 = 402,758.60/x
  3. Step 3: Cross multiply
    742,290.35x = 1,024,372.59 × 402,758.60
  4. Step 4: Simplify right side
    742,290.35x = 412,574,870,226.77
  5. Step 5: Solve for x
    x = 412,574,870,226.77/742,290.35
  6. Step 6: Final answer
    x = 555,813.33

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Double scale
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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.