Home / 740,009.08-1,021,409.88-417,907.72

Finding the Fourth Proportional to 740,009.08, 1,021,409.88 and 417,907.72

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Solution

The fourth proportional to 740,009.08, 1,021,409.88 and 417,907.72 is: 576,824.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,009.08 : 1,021,409.88 = 417,907.72 : x
  2. Step 2: Convert to fraction form
    740,009.08/1,021,409.88 = 417,907.72/x
  3. Step 3: Cross multiply
    740,009.08x = 1,021,409.88 × 417,907.72
  4. Step 4: Simplify right side
    740,009.08x = 426,855,074,136.27
  5. Step 5: Solve for x
    x = 426,855,074,136.27/740,009.08
  6. Step 6: Final answer
    x = 576,824.10

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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.