Home / 742,479.45-1,024,622.16-402,947.70

Finding the Fourth Proportional to 742,479.45, 1,024,622.16 and 402,947.70

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Solution

The fourth proportional to 742,479.45, 1,024,622.16 and 402,947.70 is: 556,068.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,479.45 : 1,024,622.16 = 402,947.70 : x
  2. Step 2: Convert to fraction form
    742,479.45/1,024,622.16 = 402,947.70/x
  3. Step 3: Cross multiply
    742,479.45x = 1,024,622.16 × 402,947.70
  4. Step 4: Simplify right side
    742,479.45x = 412,869,142,741.03
  5. Step 5: Solve for x
    x = 412,869,142,741.03/742,479.45
  6. Step 6: Final answer
    x = 556,068.11

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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.