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Finding the Fourth Proportional to 670,347.36, 925,075.49 and 380,013.71

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Solution

The fourth proportional to 670,347.36, 925,075.49 and 380,013.71 is: 524,416.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,347.36 : 925,075.49 = 380,013.71 : x
  2. Step 2: Convert to fraction form
    670,347.36/925,075.49 = 380,013.71/x
  3. Step 3: Cross multiply
    670,347.36x = 925,075.49 × 380,013.71
  4. Step 4: Simplify right side
    670,347.36x = 351,541,362,459.52
  5. Step 5: Solve for x
    x = 351,541,362,459.52/670,347.36
  6. Step 6: Final answer
    x = 524,416.72

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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.