Home / 870,051.65-1,200,815.58-507,475.50

Finding the Fourth Proportional to 870,051.65, 1,200,815.58 and 507,475.50

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Solution

The fourth proportional to 870,051.65, 1,200,815.58 and 507,475.50 is: 700,400.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,051.65 : 1,200,815.58 = 507,475.50 : x
  2. Step 2: Convert to fraction form
    870,051.65/1,200,815.58 = 507,475.50/x
  3. Step 3: Cross multiply
    870,051.65x = 1,200,815.58 × 507,475.50
  4. Step 4: Simplify right side
    870,051.65x = 609,384,478,326.84
  5. Step 5: Solve for x
    x = 609,384,478,326.84/870,051.65
  6. Step 6: Final answer
    x = 700,400.35

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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.