Home / 742,478.40-1,024,623.84-402,947.04

Finding the Fourth Proportional to 742,478.40, 1,024,623.84 and 402,947.04

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Solution

The fourth proportional to 742,478.40, 1,024,623.84 and 402,947.04 is: 556,068.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,478.40 : 1,024,623.84 = 402,947.04 : x
  2. Step 2: Convert to fraction form
    742,478.40/1,024,623.84 = 402,947.04/x
  3. Step 3: Cross multiply
    742,478.40x = 1,024,623.84 × 402,947.04
  4. Step 4: Simplify right side
    742,478.40x = 412,869,143,441.43
  5. Step 5: Solve for x
    x = 412,869,143,441.43/742,478.40
  6. Step 6: Final answer
    x = 556,068.89

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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.