Finding the Fourth Proportional to 630,827.09, 870,511.05 and 358,869.49
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Solution
The fourth proportional to 630,827.09, 870,511.05 and 358,869.49 is: 495,222.64
Step by Step Solution
- Step 1: Write the proportion equation
630,827.09 : 870,511.05 = 358,869.49 : x - Step 2: Convert to fraction form
630,827.09/870,511.05 = 358,869.49/x - Step 3: Cross multiply
630,827.09x = 870,511.05 × 358,869.49 - Step 4: Simplify right side
630,827.09x = 312,399,854,376.59 - Step 5: Solve for x
x = 312,399,854,376.59/630,827.09 - Step 6: Final answer
x = 495,222.64
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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.