Home / 977,113.20-1,465,669.80-346,090.80

Finding the Fourth Proportional to 977,113.20, 1,465,669.80 and 346,090.80

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Solution

The fourth proportional to 977,113.20, 1,465,669.80 and 346,090.80 is: 519,136.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,113.20 : 1,465,669.80 = 346,090.80 : x
  2. Step 2: Convert to fraction form
    977,113.20/1,465,669.80 = 346,090.80/x
  3. Step 3: Cross multiply
    977,113.20x = 1,465,669.80 × 346,090.80
  4. Step 4: Simplify right side
    977,113.20x = 507,254,833,617.84
  5. Step 5: Solve for x
    x = 507,254,833,617.84/977,113.20
  6. Step 6: Final answer
    x = 519,136.20

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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.