Home / 807,078.42-1,113,685.80-496,931.76

Finding the Fourth Proportional to 807,078.42, 1,113,685.80 and 496,931.76

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Solution

The fourth proportional to 807,078.42, 1,113,685.80 and 496,931.76 is: 685,715.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,078.42 : 1,113,685.80 = 496,931.76 : x
  2. Step 2: Convert to fraction form
    807,078.42/1,113,685.80 = 496,931.76/x
  3. Step 3: Cross multiply
    807,078.42x = 1,113,685.80 × 496,931.76
  4. Step 4: Simplify right side
    807,078.42x = 553,425,844,681.01
  5. Step 5: Solve for x
    x = 553,425,844,681.01/807,078.42
  6. Step 6: Final answer
    x = 685,715.08

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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.