Home / 977,130.40-1,465,695.60-345,962.20

Finding the Fourth Proportional to 977,130.40, 1,465,695.60 and 345,962.20

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Solution

The fourth proportional to 977,130.40, 1,465,695.60 and 345,962.20 is: 518,943.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,130.40 : 1,465,695.60 = 345,962.20 : x
  2. Step 2: Convert to fraction form
    977,130.40/1,465,695.60 = 345,962.20/x
  3. Step 3: Cross multiply
    977,130.40x = 1,465,695.60 × 345,962.20
  4. Step 4: Simplify right side
    977,130.40x = 507,075,274,306.32
  5. Step 5: Solve for x
    x = 507,075,274,306.32/977,130.40
  6. Step 6: Final answer
    x = 518,943.30

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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.