Home / 740,351.17-1,021,590.69-434,315.89

Finding the Fourth Proportional to 740,351.17, 1,021,590.69 and 434,315.89

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Solution

The fourth proportional to 740,351.17, 1,021,590.69 and 434,315.89 is: 599,300.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,351.17 : 1,021,590.69 = 434,315.89 : x
  2. Step 2: Convert to fraction form
    740,351.17/1,021,590.69 = 434,315.89/x
  3. Step 3: Cross multiply
    740,351.17x = 1,021,590.69 × 434,315.89
  4. Step 4: Simplify right side
    740,351.17x = 443,693,069,743.06
  5. Step 5: Solve for x
    x = 443,693,069,743.06/740,351.17
  6. Step 6: Final answer
    x = 599,300.83

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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.