Home / 838,106.55-1,156,708.95-470,624.95

Finding the Fourth Proportional to 838,106.55, 1,156,708.95 and 470,624.95

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Solution

The fourth proportional to 838,106.55, 1,156,708.95 and 470,624.95 is: 649,530.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,106.55 : 1,156,708.95 = 470,624.95 : x
  2. Step 2: Convert to fraction form
    838,106.55/1,156,708.95 = 470,624.95/x
  3. Step 3: Cross multiply
    838,106.55x = 1,156,708.95 × 470,624.95
  4. Step 4: Simplify right side
    838,106.55x = 544,376,089,405.18
  5. Step 5: Solve for x
    x = 544,376,089,405.18/838,106.55
  6. Step 6: Final answer
    x = 649,530.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.