Home / 742,425.55-1,024,547.91-402,893.80

Finding the Fourth Proportional to 742,425.55, 1,024,547.91 and 402,893.80

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Solution

The fourth proportional to 742,425.55, 1,024,547.91 and 402,893.80 is: 555,993.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,425.55 : 1,024,547.91 = 402,893.80 : x
  2. Step 2: Convert to fraction form
    742,425.55/1,024,547.91 = 402,893.80/x
  3. Step 3: Cross multiply
    742,425.55x = 1,024,547.91 × 402,893.80
  4. Step 4: Simplify right side
    742,425.55x = 412,784,000,741.96
  5. Step 5: Solve for x
    x = 412,784,000,741.96/742,425.55
  6. Step 6: Final answer
    x = 555,993.80

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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.