Home / 830,980.12-1,146,719.28-468,479.20

Finding the Fourth Proportional to 830,980.12, 1,146,719.28 and 468,479.20

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Solution

The fourth proportional to 830,980.12, 1,146,719.28 and 468,479.20 is: 646,482.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,980.12 : 1,146,719.28 = 468,479.20 : x
  2. Step 2: Convert to fraction form
    830,980.12/1,146,719.28 = 468,479.20/x
  3. Step 3: Cross multiply
    830,980.12x = 1,146,719.28 × 468,479.20
  4. Step 4: Simplify right side
    830,980.12x = 537,214,130,918.98
  5. Step 5: Solve for x
    x = 537,214,130,918.98/830,980.12
  6. Step 6: Final answer
    x = 646,482.53

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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.