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Finding the Fourth Proportional to 972,457.80, 1,458,686.70 and 341,435.40

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Solution

The fourth proportional to 972,457.80, 1,458,686.70 and 341,435.40 is: 512,153.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    972,457.80 : 1,458,686.70 = 341,435.40 : x
  2. Step 2: Convert to fraction form
    972,457.80/1,458,686.70 = 341,435.40/x
  3. Step 3: Cross multiply
    972,457.80x = 1,458,686.70 × 341,435.40
  4. Step 4: Simplify right side
    972,457.80x = 498,047,276,889.18
  5. Step 5: Solve for x
    x = 498,047,276,889.18/972,457.80
  6. Step 6: Final answer
    x = 512,153.10

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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.