Home / 985,090.40-1,478,291.70-452,337.20

Finding the Fourth Proportional to 985,090.40, 1,478,291.70 and 452,337.20

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Solution

The fourth proportional to 985,090.40, 1,478,291.70 and 452,337.20 is: 678,807.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,090.40 : 1,478,291.70 = 452,337.20 : x
  2. Step 2: Convert to fraction form
    985,090.40/1,478,291.70 = 452,337.20/x
  3. Step 3: Cross multiply
    985,090.40x = 1,478,291.70 × 452,337.20
  4. Step 4: Simplify right side
    985,090.40x = 668,686,328,361.24
  5. Step 5: Solve for x
    x = 668,686,328,361.24/985,090.40
  6. Step 6: Final answer
    x = 678,807.07

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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.