Home / 742,523.40-1,024,682.80-402,991.64

Finding the Fourth Proportional to 742,523.40, 1,024,682.80 and 402,991.64

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Solution

The fourth proportional to 742,523.40, 1,024,682.80 and 402,991.64 is: 556,128.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,523.40 : 1,024,682.80 = 402,991.64 : x
  2. Step 2: Convert to fraction form
    742,523.40/1,024,682.80 = 402,991.64/x
  3. Step 3: Cross multiply
    742,523.40x = 1,024,682.80 × 402,991.64
  4. Step 4: Simplify right side
    742,523.40x = 412,938,602,051.79
  5. Step 5: Solve for x
    x = 412,938,602,051.79/742,523.40
  6. Step 6: Final answer
    x = 556,128.74

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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.