Home / 875,075.10-1,312,450.65-243,858.30

Finding the Fourth Proportional to 875,075.10, 1,312,450.65 and 243,858.30

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Solution

The fourth proportional to 875,075.10, 1,312,450.65 and 243,858.30 is: 365,742.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,075.10 : 1,312,450.65 = 243,858.30 : x
  2. Step 2: Convert to fraction form
    875,075.10/1,312,450.65 = 243,858.30/x
  3. Step 3: Cross multiply
    875,075.10x = 1,312,450.65 × 243,858.30
  4. Step 4: Simplify right side
    875,075.10x = 320,051,984,342.90
  5. Step 5: Solve for x
    x = 320,051,984,342.90/875,075.10
  6. Step 6: Final answer
    x = 365,742.31

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.