Finding the Fourth Proportional to 472,455.80, 708,683.70 and 340,579.70
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Solution
The fourth proportional to 472,455.80, 708,683.70 and 340,579.70 is: 510,869.55
Step by Step Solution
- Step 1: Write the proportion equation
472,455.80 : 708,683.70 = 340,579.70 : x - Step 2: Convert to fraction form
472,455.80/708,683.70 = 340,579.70/x - Step 3: Cross multiply
472,455.80x = 708,683.70 × 340,579.70 - Step 4: Simplify right side
472,455.80x = 241,363,281,940.89 - Step 5: Solve for x
x = 241,363,281,940.89/472,455.80 - Step 6: Final answer
x = 510,869.55
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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.