Home / 1,385,405.32-2,076,270.90-711,459.40

Finding the Fourth Proportional to 1,385,405.32, 2,076,270.90 and 711,459.40

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Solution

The fourth proportional to 1,385,405.32, 2,076,270.90 and 711,459.40 is: 1,066,245.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,385,405.32 : 2,076,270.90 = 711,459.40 : x
  2. Step 2: Convert to fraction form
    1,385,405.32/2,076,270.90 = 711,459.40/x
  3. Step 3: Cross multiply
    1,385,405.32x = 2,076,270.90 × 711,459.40
  4. Step 4: Simplify right side
    1,385,405.32x = 1,477,182,448,751.46
  5. Step 5: Solve for x
    x = 1,477,182,448,751.46/1,385,405.32
  6. Step 6: Final answer
    x = 1,066,245.69

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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.