Finding the Fourth Proportional to 708,645.62, 977,893.88 and 402,681.08
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Solution
The fourth proportional to 708,645.62, 977,893.88 and 402,681.08 is: 555,678.82
Step by Step Solution
- Step 1: Write the proportion equation
708,645.62 : 977,893.88 = 402,681.08 : x - Step 2: Convert to fraction form
708,645.62/977,893.88 = 402,681.08/x - Step 3: Cross multiply
708,645.62x = 977,893.88 × 402,681.08 - Step 4: Simplify right side
708,645.62x = 393,779,363,723.79 - Step 5: Solve for x
x = 393,779,363,723.79/708,645.62 - Step 6: Final answer
x = 555,678.82
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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.