Home / 1,680,020.40-2,520,030.60-971,432.40

Finding the Fourth Proportional to 1,680,020.40, 2,520,030.60 and 971,432.40

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Solution

The fourth proportional to 1,680,020.40, 2,520,030.60 and 971,432.40 is: 1,457,148.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,680,020.40 : 2,520,030.60 = 971,432.40 : x
  2. Step 2: Convert to fraction form
    1,680,020.40/2,520,030.60 = 971,432.40/x
  3. Step 3: Cross multiply
    1,680,020.40x = 2,520,030.60 × 971,432.40
  4. Step 4: Simplify right side
    1,680,020.40x = 2,448,039,373,831.44
  5. Step 5: Solve for x
    x = 2,448,039,373,831.44/1,680,020.40
  6. Step 6: Final answer
    x = 1,457,148.60

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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.