Home / 839,477.90-1,158,520.57-472,070.67

Finding the Fourth Proportional to 839,477.90, 1,158,520.57 and 472,070.67

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Solution

The fourth proportional to 839,477.90, 1,158,520.57 and 472,070.67 is: 651,480.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,477.90 : 1,158,520.57 = 472,070.67 : x
  2. Step 2: Convert to fraction form
    839,477.90/1,158,520.57 = 472,070.67/x
  3. Step 3: Cross multiply
    839,477.90x = 1,158,520.57 × 472,070.67
  4. Step 4: Simplify right side
    839,477.90x = 546,903,581,688.68
  5. Step 5: Solve for x
    x = 546,903,581,688.68/839,477.90
  6. Step 6: Final answer
    x = 651,480.62

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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.