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Finding the Fourth Proportional to 507,643.80, 761,465.70 and 350,050.20

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Solution

The fourth proportional to 507,643.80, 761,465.70 and 350,050.20 is: 525,075.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,643.80 : 761,465.70 = 350,050.20 : x
  2. Step 2: Convert to fraction form
    507,643.80/761,465.70 = 350,050.20/x
  3. Step 3: Cross multiply
    507,643.80x = 761,465.70 × 350,050.20
  4. Step 4: Simplify right side
    507,643.80x = 266,551,220,578.14
  5. Step 5: Solve for x
    x = 266,551,220,578.14/507,643.80
  6. Step 6: Final answer
    x = 525,075.30

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Double scale
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Similar ratio
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1.5x scale

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.