Home / 778,977.04-1,075,167.65-456,790.93

Finding the Fourth Proportional to 778,977.04, 1,075,167.65 and 456,790.93

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Solution

The fourth proportional to 778,977.04, 1,075,167.65 and 456,790.93 is: 630,476.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,977.04 : 1,075,167.65 = 456,790.93 : x
  2. Step 2: Convert to fraction form
    778,977.04/1,075,167.65 = 456,790.93/x
  3. Step 3: Cross multiply
    778,977.04x = 1,075,167.65 × 456,790.93
  4. Step 4: Simplify right side
    778,977.04x = 491,126,830,749.41
  5. Step 5: Solve for x
    x = 491,126,830,749.41/778,977.04
  6. Step 6: Final answer
    x = 630,476.65

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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.