Home / 900,556.02-1,242,645.57-513,421.38

Finding the Fourth Proportional to 900,556.02, 1,242,645.57 and 513,421.38

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Solution

The fourth proportional to 900,556.02, 1,242,645.57 and 513,421.38 is: 708,452.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,556.02 : 1,242,645.57 = 513,421.38 : x
  2. Step 2: Convert to fraction form
    900,556.02/1,242,645.57 = 513,421.38/x
  3. Step 3: Cross multiply
    900,556.02x = 1,242,645.57 × 513,421.38
  4. Step 4: Simplify right side
    900,556.02x = 638,000,803,400.29
  5. Step 5: Solve for x
    x = 638,000,803,400.29/900,556.02
  6. Step 6: Final answer
    x = 708,452.10

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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.