Home / 742,613.04-1,024,630.29-420,323.10

Finding the Fourth Proportional to 742,613.04, 1,024,630.29 and 420,323.10

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Solution

The fourth proportional to 742,613.04, 1,024,630.29 and 420,323.10 is: 579,946.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,613.04 : 1,024,630.29 = 420,323.10 : x
  2. Step 2: Convert to fraction form
    742,613.04/1,024,630.29 = 420,323.10/x
  3. Step 3: Cross multiply
    742,613.04x = 1,024,630.29 × 420,323.10
  4. Step 4: Simplify right side
    742,613.04x = 430,675,779,846.70
  5. Step 5: Solve for x
    x = 430,675,779,846.70/742,613.04
  6. Step 6: Final answer
    x = 579,946.43

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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.