Finding the Fourth Proportional to 929,683.08, 1,282,908.72 and 521,746.80
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Solution
The fourth proportional to 929,683.08, 1,282,908.72 and 521,746.80 is: 719,980.32
Step by Step Solution
- Step 1: Write the proportion equation
929,683.08 : 1,282,908.72 = 521,746.80 : x - Step 2: Convert to fraction form
929,683.08/1,282,908.72 = 521,746.80/x - Step 3: Cross multiply
929,683.08x = 1,282,908.72 × 521,746.80 - Step 4: Simplify right side
929,683.08x = 669,353,519,352.10 - Step 5: Solve for x
x = 669,353,519,352.10/929,683.08 - Step 6: Final answer
x = 719,980.32
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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.