Home / 713,021.30-1,069,666.81-286,590.32

Finding the Fourth Proportional to 713,021.30, 1,069,666.81 and 286,590.32

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Solution

The fourth proportional to 713,021.30, 1,069,666.81 and 286,590.32 is: 429,939.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,021.30 : 1,069,666.81 = 286,590.32 : x
  2. Step 2: Convert to fraction form
    713,021.30/1,069,666.81 = 286,590.32/x
  3. Step 3: Cross multiply
    713,021.30x = 1,069,666.81 × 286,590.32
  4. Step 4: Simplify right side
    713,021.30x = 306,556,153,371.28
  5. Step 5: Solve for x
    x = 306,556,153,371.28/713,021.30
  6. Step 6: Final answer
    x = 429,939.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.