Home / 740,569.65-1,021,980.20-401,037.90

Finding the Fourth Proportional to 740,569.65, 1,021,980.20 and 401,037.90

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Solution

The fourth proportional to 740,569.65, 1,021,980.20 and 401,037.90 is: 553,429.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,569.65 : 1,021,980.20 = 401,037.90 : x
  2. Step 2: Convert to fraction form
    740,569.65/1,021,980.20 = 401,037.90/x
  3. Step 3: Cross multiply
    740,569.65x = 1,021,980.20 × 401,037.90
  4. Step 4: Simplify right side
    740,569.65x = 409,852,791,244.39
  5. Step 5: Solve for x
    x = 409,852,791,244.39/740,569.65
  6. Step 6: Final answer
    x = 553,429.10

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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.