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Finding the Fourth Proportional to 507,640.80, 761,461.20 and 350,047.20

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Solution

The fourth proportional to 507,640.80, 761,461.20 and 350,047.20 is: 525,070.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,640.80 : 761,461.20 = 350,047.20 : x
  2. Step 2: Convert to fraction form
    507,640.80/761,461.20 = 350,047.20/x
  3. Step 3: Cross multiply
    507,640.80x = 761,461.20 × 350,047.20
  4. Step 4: Simplify right side
    507,640.80x = 266,547,360,968.64
  5. Step 5: Solve for x
    x = 266,547,360,968.64/507,640.80
  6. Step 6: Final answer
    x = 525,070.80

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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.