Home / 830,021.65-1,145,460.63-462,531.94

Finding the Fourth Proportional to 830,021.65, 1,145,460.63 and 462,531.94

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Solution

The fourth proportional to 830,021.65, 1,145,460.63 and 462,531.94 is: 638,311.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,021.65 : 1,145,460.63 = 462,531.94 : x
  2. Step 2: Convert to fraction form
    830,021.65/1,145,460.63 = 462,531.94/x
  3. Step 3: Cross multiply
    830,021.65x = 1,145,460.63 × 462,531.94
  4. Step 4: Simplify right side
    830,021.65x = 529,812,127,387.52
  5. Step 5: Solve for x
    x = 529,812,127,387.52/830,021.65
  6. Step 6: Final answer
    x = 638,311.21

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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.