Home / 742,443.03-1,024,572.06-402,911.28

Finding the Fourth Proportional to 742,443.03, 1,024,572.06 and 402,911.28

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Solution

The fourth proportional to 742,443.03, 1,024,572.06 and 402,911.28 is: 556,017.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,443.03 : 1,024,572.06 = 402,911.28 : x
  2. Step 2: Convert to fraction form
    742,443.03/1,024,572.06 = 402,911.28/x
  3. Step 3: Cross multiply
    742,443.03x = 1,024,572.06 × 402,911.28
  4. Step 4: Simplify right side
    742,443.03x = 412,811,640,146.84
  5. Step 5: Solve for x
    x = 412,811,640,146.84/742,443.03
  6. Step 6: Final answer
    x = 556,017.93

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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.