Home / 778,146.24-1,073,842.72-429,278.74

Finding the Fourth Proportional to 778,146.24, 1,073,842.72 and 429,278.74

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Solution

The fourth proportional to 778,146.24, 1,073,842.72 and 429,278.74 is: 592,405.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,146.24 : 1,073,842.72 = 429,278.74 : x
  2. Step 2: Convert to fraction form
    778,146.24/1,073,842.72 = 429,278.74/x
  3. Step 3: Cross multiply
    778,146.24x = 1,073,842.72 × 429,278.74
  4. Step 4: Simplify right side
    778,146.24x = 460,977,849,799.77
  5. Step 5: Solve for x
    x = 460,977,849,799.77/778,146.24
  6. Step 6: Final answer
    x = 592,405.16

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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.