Home / 739,621.08-1,020,802.28-429,475.32

Finding the Fourth Proportional to 739,621.08, 1,020,802.28 and 429,475.32

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Solution

The fourth proportional to 739,621.08, 1,020,802.28 and 429,475.32 is: 592,748.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,621.08 : 1,020,802.28 = 429,475.32 : x
  2. Step 2: Convert to fraction form
    739,621.08/1,020,802.28 = 429,475.32/x
  3. Step 3: Cross multiply
    739,621.08x = 1,020,802.28 × 429,475.32
  4. Step 4: Simplify right side
    739,621.08x = 438,409,385,859.73
  5. Step 5: Solve for x
    x = 438,409,385,859.73/739,621.08
  6. Step 6: Final answer
    x = 592,748.64

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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.